diff --git a/vendors/knockout/build/output/knockout-latest.debug.js b/vendors/knockout/build/output/knockout-latest.debug.js
index d08a196d5..c06acdeb0 100644
--- a/vendors/knockout/build/output/knockout-latest.debug.js
+++ b/vendors/knockout/build/output/knockout-latest.debug.js
@@ -215,24 +215,25 @@ ko.utils.domData = new (function () {
     };
 })();
 
-ko.utils.domNodeDisposal = new (function () {
+ko.utils.domNodeDisposal = (() => {
     var domDataKey = ko.utils.domData.nextKey();
     var cleanableNodeTypes = { 1: true, 8: true, 9: true };       // Element, Comment, Document
     var cleanableNodeTypesWithDescendants = { 1: true, 9: true }; // Element, Document
 
-    function getDisposeCallbacksCollection(node, createIfNotFound) {
+    const getDisposeCallbacksCollection = (node, createIfNotFound) => {
         var allDisposeCallbacks = ko.utils.domData.get(node, domDataKey);
         if ((allDisposeCallbacks === undefined) && createIfNotFound) {
             allDisposeCallbacks = [];
             ko.utils.domData.set(node, domDataKey, allDisposeCallbacks);
         }
         return allDisposeCallbacks;
-    }
-    function destroyCallbacksCollection(node) {
-        ko.utils.domData.set(node, domDataKey, undefined);
-    }
+    },
 
-    function cleanSingleNode(node) {
+    destroyCallbacksCollection = node => {
+        ko.utils.domData.set(node, domDataKey, undefined);
+    },
+
+    cleanSingleNode = node => {
         // Run all the dispose callbacks
         var callbacks = getDisposeCallbacksCollection(node, false);
         if (callbacks) {
@@ -246,12 +247,11 @@ ko.utils.domNodeDisposal = new (function () {
 
         // Clear any immediate-child comment nodes, as these wouldn't have been found by
         // node.getElementsByTagName("*") in cleanNode() (comment nodes aren't elements)
-        if (cleanableNodeTypesWithDescendants[node.nodeType]) {
-            cleanNodesInList(node.childNodes, true/*onlyComments*/);
-        }
-    }
+        cleanableNodeTypesWithDescendants[node.nodeType]
+        && cleanNodesInList(node.childNodes, true/*onlyComments*/);
+    },
 
-    function cleanNodesInList(nodeList, onlyComments) {
+    cleanNodesInList = (nodeList, onlyComments) => {
         var cleanedNodes = [], lastCleanedNode;
         for (var i = 0; i < nodeList.length; i++) {
             if (!onlyComments || nodeList[i].nodeType === 8) {
@@ -261,7 +261,7 @@ ko.utils.domNodeDisposal = new (function () {
                 }
             }
         }
-    }
+    };
 
     return {
         addDisposeCallback : (node, callback) => {
@@ -274,8 +274,7 @@ ko.utils.domNodeDisposal = new (function () {
             var callbacksCollection = getDisposeCallbacksCollection(node, false);
             if (callbacksCollection) {
                 ko.utils.arrayRemoveItem(callbacksCollection, callback);
-                if (callbacksCollection.length == 0)
-                    destroyCallbacksCollection(node);
+                callbacksCollection.length || destroyCallbacksCollection(node);
             }
         },
 
@@ -286,9 +285,8 @@ ko.utils.domNodeDisposal = new (function () {
                     cleanSingleNode(node);
 
                     // ... then its descendants, where applicable
-                    if (cleanableNodeTypesWithDescendants[node.nodeType]) {
-                        cleanNodesInList(node.getElementsByTagName("*"));
-                    }
+                    cleanableNodeTypesWithDescendants[node.nodeType]
+                    && cleanNodesInList(node.getElementsByTagName("*"));
                 }
             });
 
@@ -297,8 +295,7 @@ ko.utils.domNodeDisposal = new (function () {
 
         removeNode : node => {
             ko.cleanNode(node);
-            if (node.parentNode)
-                node.parentNode.removeChild(node);
+            node.parentNode && node.parentNode.removeChild(node);
         }
     };
 })();
@@ -454,6 +451,7 @@ class koSubscription
     }
 
     disposeWhenNodeIsRemoved(node) {
+        // MutationObserver ?
         this._node = node;
         ko.utils.domNodeDisposal.addDisposeCallback(node, this._domNodeDisposalCallback = this.dispose.bind(this));
     }
@@ -990,7 +988,7 @@ ko.extenders['trackArrayChanges'] = (target, options) => {
 };
 var computedState = Symbol('_state');
 
-ko.computed = function (evaluatorFunctionOrOptions, options) {
+ko.computed = (evaluatorFunctionOrOptions, options) => {
     if (typeof evaluatorFunctionOrOptions === "object") {
         // Single-parameter syntax - everything is on this "options" param
         options = evaluatorFunctionOrOptions;
@@ -1061,11 +1059,6 @@ ko.computed = function (evaluatorFunctionOrOptions, options) {
         ko.utils.extend(computedObservable, deferEvaluationOverrides);
     }
 
-    if (DEBUG) {
-        // #1731 - Aid debugging by exposing the computed's options
-        computedObservable["_options"] = options;
-    }
-
     if (state.disposeWhenNodeIsRemoved) {
         // Since this computed is associated with a DOM node, and we don't want to dispose the computed
         // until the DOM node is *removed* from the document (as opposed to never having been in the document),
@@ -1089,7 +1082,7 @@ ko.computed = function (evaluatorFunctionOrOptions, options) {
     // Attach a DOM node disposal callback so that the computed will be proactively disposed as soon as the node is
     // removed using ko.removeNode. But skip if isActive is false (there will never be any dependencies to dispose).
     if (state.disposeWhenNodeIsRemoved && computedObservable.isActive()) {
-        ko.utils.domNodeDisposal.addDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback = function () {
+        ko.utils.domNodeDisposal.addDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback = () => {
             computedObservable.dispose();
         });
     }
@@ -1126,6 +1119,26 @@ function computedBeginDependencyDetectionCallback(subscribable, id) {
     }
 }
 
+function evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext) {
+	// This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.
+	// You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection
+	// can be independent of try/finally blocks, which contributes to saving about 40% off the CPU
+	// overhead of computed evaluation (on V8 at least).
+
+	try {
+		return state.readFunction();
+	} finally {
+		ko.dependencyDetection.end();
+
+		// For each subscription no longer being used, remove it from the active subscriptions list and dispose it
+		if (dependencyDetectionContext.disposalCount && !state.isSleeping) {
+			ko.utils.objectForEach(dependencyDetectionContext.disposalCandidates, computedDisposeDependencyCallback);
+		}
+
+		state.isStale = state.isDirty = false;
+	}
+}
+
 var computedFn = {
     "equalityComparer": valuesArePrimitiveAndEqual,
     getDependenciesCount: function () {
@@ -1274,7 +1287,7 @@ var computedFn = {
         state.dependencyTracking = {};
         state.dependenciesCount = 0;
 
-        var newValue = this.evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext);
+        var newValue = evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext);
 
         if (!state.dependenciesCount) {
             computedObservable.dispose();
@@ -1291,7 +1304,6 @@ var computedFn = {
             }
 
             state.latestValue = newValue;
-            if (DEBUG) computedObservable._latestValue = newValue;
 
             computedObservable["notifySubscribers"](state.latestValue, "spectate");
 
@@ -1309,25 +1321,6 @@ var computedFn = {
 
         return changed;
     },
-    evaluateImmediate_CallReadThenEndDependencyDetection: (state, dependencyDetectionContext) => {
-        // This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.
-        // You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection
-        // can be independent of try/finally blocks, which contributes to saving about 40% off the CPU
-        // overhead of computed evaluation (on V8 at least).
-
-        try {
-            return state.readFunction();
-        } finally {
-            ko.dependencyDetection.end();
-
-            // For each subscription no longer being used, remove it from the active subscriptions list and dispose it
-            if (dependencyDetectionContext.disposalCount && !state.isSleeping) {
-                ko.utils.objectForEach(dependencyDetectionContext.disposalCandidates, computedDisposeDependencyCallback);
-            }
-
-            state.isStale = state.isDirty = false;
-        }
-    },
     peek: function (evaluate) {
         // By default, peek won't re-evaluate, except while the computed is sleeping or to get the initial value when "deferEvaluation" is set.
         // Pass in true to evaluate if needed.
@@ -3386,7 +3379,6 @@ ko.bindingHandlers['textInput'] = {
             var elementValue = element.value;
             if (previousElementValue !== elementValue) {
                 // Provide a way for tests to know exactly which event was processed
-                if (DEBUG && event) element['_ko_textInputProcessedEvent'] = event.type;
                 previousElementValue = elementValue;
                 ko.expressionRewriting.writeValueToProperty(valueAccessor(), allBindings, 'textInput', elementValue);
             }
@@ -3399,8 +3391,7 @@ ko.bindingHandlers['textInput'] = {
                 // updates that are from the previous state of the element, usually due to techniques
                 // such as rateLimit. Such updates, if not ignored, can cause keystrokes to be lost.
                 elementValueBeforeEvent = element.value;
-                var handler = DEBUG ? updateModel.bind(element, {type: event.type}) : updateModel;
-                timeoutHandle = ko.utils.setTimeout(handler, 4);
+                timeoutHandle = ko.utils.setTimeout(updateModel, 4);
             }
         };
 
@@ -3427,18 +3418,7 @@ ko.bindingHandlers['textInput'] = {
         var onEvent = (event, handler) =>
             ko.utils.registerEventHandler(element, event, handler);
 
-        if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
-            // Provide a way for tests to specify exactly which events are bound
-            ko.bindingHandlers['textInput']['_forceUpdateOn'].forEach(eventName => {
-                if (eventName.slice(0,5) == 'after') {
-                    onEvent(eventName.slice(5), deferUpdateModel);
-                } else {
-                    onEvent(eventName, updateModel);
-                }
-            });
-        } else {
-            onEvent('input', updateModel);
-        }
+        onEvent('input', updateModel);
 
         // Bind to the change event so that we can catch programmatic updates of the value that fire this event.
         onEvent('change', updateModel);
diff --git a/vendors/knockout/build/output/knockout-latest.js b/vendors/knockout/build/output/knockout-latest.js
index feb14080b..7f9f8641b 100644
--- a/vendors/knockout/build/output/knockout-latest.js
+++ b/vendors/knockout/build/output/knockout-latest.js
@@ -4,80 +4,80 @@
  * License: MIT (http://www.opensource.org/licenses/mit-license.php)
  */
 
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+function k(l,m,r){var v=typeof m;return"function"==v?m(l):"string"==v?l[m]:r}function t(l,m){u&&n?a.c.notify(b,a.c.B):p.length&&(l=p.includes(a.A.O(m[0])),m[0].selected=l,u&&!l&&a.i.D(a.a.Zb,null,[b,"change"]))}var d=b.multiple,f=0!=b.length&&d?b.scrollTop:null,h=a.a.g(c()),n=e.get("valueAllowUnset")&&e.has("value");c={};var p=[];n||(d?p=g().map(a.A.O):0<=b.selectedIndex&&p.push(a.A.O(b.options[b.selectedIndex])));if(h){"undefined"==typeof h.length&&(h=[h]);var q=h.filter(l=>l||null==l);e.has("optionsCaption")&&
+(h=a.a.g(e.get("optionsCaption")),null!==h&&void 0!==h&&q.unshift(Y))}var u=!1;c.beforeRemove=l=>b.removeChild(l);h=t;e.has("optionsAfterRender")&&"function"==typeof e.get("optionsAfterRender")&&(h=(l,m)=>{t(l,m);a.i.D(e.get("optionsAfterRender"),null,[m[0],l!==Y?l:void 0])});a.a.Wb(b,q,function(l,m,r){r.length&&(p=!n&&r[0].selected?[a.A.O(r[0])]:[],u=!0);m=b.ownerDocument.createElement("option");l===Y?(a.a.ib(m,e.get("optionsCaption")),a.A.La(m,void 0)):(r=k(l,e.get("optionsValue"),l),a.A.La(m,a.a.g(r)),
+l=k(l,e.get("optionsText"),r),a.a.ib(m,l));return[m]},c,h);if(!n){var x;d?x=p.length&&g().length<p.length:x=p.length&&0<=b.selectedIndex?a.A.O(b.options[b.selectedIndex])!==p[0]:p.length||0<=b.selectedIndex;x&&a.i.D(a.a.Zb,null,[b,"change"])}(n||a.i.bb())&&a.c.notify(b,a.c.B);f&&20<Math.abs(f-b.scrollTop)&&(b.scrollTop=f)}};a.b.options.fb=a.a.f.X();a.b.style={update:(b,c)=>{c=a.a.g(c()||{});a.a.N(c,(e,g)=>{g=a.a.g(g);if(null===g||void 0===g||!1===g)g="";if(/^--/.test(e))b.style.setProperty(e,g);else{e=
+e.replace(/-(\w)/g,(t,d)=>d.toUpperCase());var k=b.style[e];b.style[e]=g;g===k||b.style[e]!=k||isNaN(g)||(b.style[e]=g+"px")}})}};a.b.submit={init:(b,c,e,g,k)=>{if("function"!=typeof c())throw Error("The value for a submit binding must be a function");a.a.H(b,"submit",t=>{var d=c();try{var f=d.call(k.$data,b)}finally{!0!==f&&(t.preventDefault?t.preventDefault():t.returnValue=!1)}})}};a.b.text={init:()=>({controlsDescendantBindings:!0}),update:(b,c)=>a.a.ib(b,c())};a.h.ca.text=!0;a.b.textInput={init:(b,
+c,e)=>{var g=b.value,k,t,d=()=>{clearTimeout(k);t=k=void 0;var h=b.value;g!==h&&(g=h,a.F.ob(c(),e,"textInput",h))},f=()=>{var h=a.a.g(c());if(null===h||void 0===h)h="";void 0!==t&&h===t?a.a.setTimeout(f,4):b.value!==h&&(b.value=h,g=b.value)};a.a.H(b,"input",d);a.a.H(b,"change",d);a.a.H(b,"blur",d);a.l(f,{j:b})}};a.F.mb.textInput=!0;a.b.textinput={preprocess:(b,c,e)=>e("textInput",b)};a.b.value={init:(b,c,e)=>{var g=b.matches("SELECT"),k=b.matches("INPUT");if(!k||"checkbox"!=b.type&&"radio"!=b.type){var t=
+[],d=e.get("valueUpdate"),f=null;d&&("string"==typeof d?t=[d]:t=d?d.filter((q,u)=>d.indexOf(q)===u):[],a.a.va(t,"change"));var h=()=>{f=null;var q=c(),u=a.A.O(b);a.F.ob(q,e,"value",u)};t.forEach(q=>{var u=h;a.a.Dc(q,"after")&&(u=()=>{f=a.A.O(b);a.a.setTimeout(h,0)},q=q.substring(5));a.a.H(b,q,u)});var n=k&&"file"==b.type?()=>{var q=a.a.g(c());null===q||void 0===q||""===q?b.value="":a.i.D(h)}:()=>{var q=a.a.g(c()),u=a.A.O(b);if(null!==f&&q===f)a.a.setTimeout(n,0);else if(q!==u||void 0===u)g?(u=e.get("valueAllowUnset"),
+a.A.La(b,q,u),u||q===a.A.O(b)||a.i.D(h)):a.A.La(b,q)};if(g){var p;a.c.subscribe(b,a.c.B,()=>{p?e.get("valueAllowUnset")?n():h():(a.a.H(b,"change",h),p=a.l(n,{j:b}))},null,{notifyImmediately:!0})}else a.a.H(b,"change",h),a.l(n,{j:b})}else a.Pa(b,{checkedValue:c})},update:()=>{}};a.F.mb.value=!0;a.b.visible={update:(b,c)=>{c=a.a.g(c());var e="none"!=b.style.display;c&&!e?b.style.display="":e&&!c&&(b.style.display="none")}};a.b.hidden={update:(b,c)=>b.hidden=!!a.a.g(c())};(function(b){a.b[b]={init:function(c,
+e,g,k,t){return a.b.event.init.call(this,c,()=>({[b]:e()}),g,k,t)}}})("click");(()=>{let b=a.a.f.X();class c{constructor(g){this.Va=g}Ha(...g){let k=this.Va;if(!g.length)return a.a.f.get(k,b)||(11===this.P?k.content:1===this.P?k:void 0);a.a.f.set(k,b,g[0])}}class e extends c{constructor(g){super(g);g&&(this.P=g.matches("TEMPLATE")&&g.content?g.content.nodeType:1)}}a.Ia={Va:e,Oa:c}})();(()=>{function b(d,f){if(d.length){var h=d[0],n=h.parentNode;g(h,d[d.length-1],p=>{1!==p.nodeType&&8!==p.nodeType||
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+q=!1;switch(f){case "replaceChildren":a.h.sa(d,h);q=!0;break;case "ignoreTargetNode":break;default:throw Error("Unknown renderMode: "+f);}q&&(b(h,n),p.afterRender&&a.i.D(p.afterRender,null,[h,n[p.as||"$data"]]),"replaceChildren"==f&&a.c.notify(d,a.c.B));return h}function e(d,f,h){return a.K(d)?d():"function"===typeof d?d(f,h):d}var g=(d,f,h)=>{var n;for(f=a.h.nextSibling(f);d&&(n=d)!==f;)d=a.h.nextSibling(n),h(n,d)};a.Ac=function(d,f,h,n){h=h||{};var p=p||"replaceChildren";if(n){var q=n.nodeType?
+n:0<n.length?n[0]:null;return a.l(()=>{var u=f&&f instanceof a.R?f:new a.R(f,null,null,null,{exportDependencies:!0}),x=e(d,u.$data,u);c(n,p,x,u,h)},{oa:()=>!q||!a.a.Xa(q),j:q})}console.log("no targetNodeOrNodeArray")};a.Bc=(d,f,h,n,p)=>{function q(y,w){a.i.D(a.a.Wb,null,[n,y,l,h,m,w]);a.c.notify(n,a.c.B)}var u,x=h.as,l=(y,w)=>{u=p.createChildContext(y,{as:x,noChildContext:h.noChildContext,extend:A=>{A.$index=w;x&&(A[x+"Index"]=w)}});y=e(d,y,u);return c(n,"ignoreTargetNode",y,u,h)},m=(y,w)=>{b(w,u);
+h.afterRender&&h.afterRender(w,y);u=null},r=!1===h.includeDestroyed;if(r||h.beforeRemove||!a.Ob(f))return a.l(()=>{var y=a.a.g(f)||[];"undefined"==typeof y.length&&(y=[y]);r&&(y=y.filter(w=>w||null==w));q(y)},{j:n});q(f.G());var v=f.subscribe(y=>{q(f(),y)},null,"arrayChange");v.j(n);return v};var k=a.a.f.X(),t=a.a.f.X();a.b.template={init:(d,f)=>{f=a.a.g(f());if("string"==typeof f||"name"in f)a.h.pa(d);else if("nodes"in f){f=f.nodes||[];if(a.K(f))throw Error('The "nodes" option must be a plain, non-observable array.');
+let h=f[0]&&f[0].parentNode;h&&a.a.f.get(h,t)||(h=a.a.Rb(f),a.a.f.set(h,t,!0));(new a.Ia.Oa(d)).Ha(h)}else if(f=a.h.childNodes(d),0<f.length)f=a.a.Rb(f),(new a.Ia.Oa(d)).Ha(f);else throw Error("Anonymous template defined, but no template content was provided");return{controlsDescendantBindings:!0}},update:(d,f,h,n,p)=>{var q=f();f=a.a.g(q);h=!0;n=null;"string"==typeof f?f={}:(q="name"in f?f.name:d,"if"in f&&(h=a.a.g(f["if"])),h&&"ifnot"in f&&(h=!a.a.g(f.ifnot)),h&&!q&&(h=!1));"foreach"in f?n=a.Bc(q,
+h&&f.foreach||[],f,d,p):h?(h=p,"data"in f&&(h=p.createChildContext(f.data,{as:f.as,noChildContext:f.noChildContext,exportDependencies:!0})),n=a.Ac(q,h,f,d)):a.h.pa(d);p=n;(f=a.a.f.get(d,k))&&"function"==typeof f.o&&f.o();a.a.f.set(d,k,!p||p.ga&&!p.ga()?void 0:p)}};a.F.Ra.template=d=>{d=a.F.xc(d);return 1==d.length&&d[0].unknown||a.F.vc(d,"name")?null:"This template engine does not support anonymous templates nested within its templates"};a.h.ca.template=!0})();a.a.Lb=(b,c,e)=>{if(b.length&&c.length){var g,
+k,t,d,f;for(g=k=0;(!e||g<e)&&(d=b[k]);++k){for(t=0;f=c[t];++t)if(d.value===f.value){d.moved=f.index;f.moved=d.index;c.splice(t,1);g=t=0;break}g+=t}}};a.a.Fb=(()=>{function b(c,e,g,k,t){var d=Math.min,f=Math.max,h=[],n,p=c.length,q,u=e.length,x=u-p||1,l=p+u+1,m;for(n=0;n<=p;n++){var r=m;h.push(m=[]);var v=d(u,n+x);for(q=f(0,n-1);q<=v;q++)m[q]=q?n?c[n-1]===e[q-1]?r[q-1]:d(r[q]||l,m[q-1]||l)+1:q+1:n+1}d=[];f=[];x=[];n=p;for(q=u;n||q;)u=h[n][q]-1,q&&u===h[n][q-1]?f.push(d[d.length]={status:g,value:e[--q],
+index:q}):n&&u===h[n-1][q]?x.push(d[d.length]={status:k,value:c[--n],index:n}):(--q,--n,t.sparse||d.push({status:"retained",value:e[q]}));a.a.Lb(x,f,!t.dontLimitMoves&&10*p);return d.reverse()}return function(c,e,g){g="boolean"===typeof g?{dontLimitMoves:g}:g||{};c=c||[];e=e||[];return c.length<e.length?b(c,e,"added","deleted",g):b(e,c,"deleted","added",g)}})();(()=>{function b(g,k,t,d,f){var h=[],n=a.l(()=>{var p=k(t,f,a.a.za(h,g))||[];if(0<h.length){var q=h.nodeType?[h]:h;if(0<q.length){var u=q[0],
+x=u.parentNode,l;var m=0;for(l=p.length;m<l;m++)x.insertBefore(p[m],u);m=0;for(l=q.length;m<l;m++)a.removeNode(q[m])}d&&a.i.D(d,null,[t,p,f])}h.length=0;h.push(...p)},{j:g,oa:()=>!!h.find(a.a.Xa)});return{M:h,Ta:n.ga()?n:void 0}}var c=a.a.f.X(),e=a.a.f.X();a.a.Wb=(g,k,t,d,f,h)=>{function n(H){z={da:H,Ca:a.ba(r++)};l.push(z);x||I.push(z)}function p(H){z=u[H];r!==z.Ca.G()&&A.push(z);z.Ca(r++);a.a.za(z.M,g);l.push(z)}function q(H,L){if(H)for(var K=0,N=L.length;K<N;K++)L[K].M.forEach(ia=>H(ia,K,L[K].da))}
+k=k||[];"undefined"==typeof k.length&&(k=[k]);d=d||{};var u=a.a.f.get(g,c),x=!u,l=[],m=0,r=0,v=[],y=[],w=[],A=[],I=[],G=0;if(x)k.forEach(n);else{if(!h||u&&u._countWaitingForRemove)h=Array.prototype.map.call(u,H=>H.da),h=a.a.Fb(h,k,{dontLimitMoves:d.dontLimitMoves,sparse:!0});for(let H=0,L,K,N;L=h[H];H++)switch(K=L.moved,N=L.index,L.status){case "deleted":for(;m<N;)p(m++);if(void 0===K){var z=u[m];z.Ta&&(z.Ta.o(),z.Ta=void 0);a.a.za(z.M,g).length&&(d.beforeRemove&&(l.push(z),G++,z.da===e?z=null:w.push(z)),
+z&&v.push.apply(v,z.M))}m++;break;case "added":for(;r<N;)p(m++);void 0!==K?(y.push(l.length),p(K)):n(L.value)}for(;r<k.length;)p(m++);l._countWaitingForRemove=G}a.a.f.set(g,c,l);q(d.beforeMove,A);v.forEach(d.beforeRemove?a.ea:a.removeNode);var M,B;G=g.ownerDocument.activeElement;if(y.length)for(;void 0!=(k=y.shift());){z=l[k];for(M=void 0;k;)if((B=l[--k].M)&&B.length){M=B[B.length-1];break}for(m=0;v=z.M[m];M=v,m++)a.h.Nb(g,v,M)}for(k=0;z=l[k];k++){z.M||a.a.extend(z,b(g,t,z.da,f,z.Ca));for(m=0;v=z.M[m];M=
+v,m++)a.h.Nb(g,v,M);!z.rc&&f&&(f(z.da,z.M,z.Ca),z.rc=!0,M=z.M[z.M.length-1])}G&&g.ownerDocument.activeElement!=G&&G.focus();q(d.beforeRemove,w);for(k=0;k<w.length;++k)w[k].da=e;q(d.afterMove,A);q(d.afterAdd,I)}})();C.ko=W})(this);
diff --git a/vendors/knockout/src/binding/defaultBindings/textInput.js b/vendors/knockout/src/binding/defaultBindings/textInput.js
index a339baa89..bc344caa3 100644
--- a/vendors/knockout/src/binding/defaultBindings/textInput.js
+++ b/vendors/knockout/src/binding/defaultBindings/textInput.js
@@ -12,7 +12,6 @@ ko.bindingHandlers['textInput'] = {
             var elementValue = element.value;
             if (previousElementValue !== elementValue) {
                 // Provide a way for tests to know exactly which event was processed
-                if (DEBUG && event) element['_ko_textInputProcessedEvent'] = event.type;
                 previousElementValue = elementValue;
                 ko.expressionRewriting.writeValueToProperty(valueAccessor(), allBindings, 'textInput', elementValue);
             }
@@ -25,8 +24,7 @@ ko.bindingHandlers['textInput'] = {
                 // updates that are from the previous state of the element, usually due to techniques
                 // such as rateLimit. Such updates, if not ignored, can cause keystrokes to be lost.
                 elementValueBeforeEvent = element.value;
-                var handler = DEBUG ? updateModel.bind(element, {type: event.type}) : updateModel;
-                timeoutHandle = ko.utils.setTimeout(handler, 4);
+                timeoutHandle = ko.utils.setTimeout(updateModel, 4);
             }
         };
 
@@ -53,18 +51,7 @@ ko.bindingHandlers['textInput'] = {
         var onEvent = (event, handler) =>
             ko.utils.registerEventHandler(element, event, handler);
 
-        if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
-            // Provide a way for tests to specify exactly which events are bound
-            ko.bindingHandlers['textInput']['_forceUpdateOn'].forEach(eventName => {
-                if (eventName.slice(0,5) == 'after') {
-                    onEvent(eventName.slice(5), deferUpdateModel);
-                } else {
-                    onEvent(eventName, updateModel);
-                }
-            });
-        } else {
-            onEvent('input', updateModel);
-        }
+        onEvent('input', updateModel);
 
         // Bind to the change event so that we can catch programmatic updates of the value that fire this event.
         onEvent('change', updateModel);
diff --git a/vendors/knockout/src/subscribables/dependentObservable.js b/vendors/knockout/src/subscribables/dependentObservable.js
index d5420ae94..0779f2ec6 100644
--- a/vendors/knockout/src/subscribables/dependentObservable.js
+++ b/vendors/knockout/src/subscribables/dependentObservable.js
@@ -1,6 +1,6 @@
 var computedState = Symbol('_state');
 
-ko.computed = function (evaluatorFunctionOrOptions, options) {
+ko.computed = (evaluatorFunctionOrOptions, options) => {
     if (typeof evaluatorFunctionOrOptions === "object") {
         // Single-parameter syntax - everything is on this "options" param
         options = evaluatorFunctionOrOptions;
@@ -71,11 +71,6 @@ ko.computed = function (evaluatorFunctionOrOptions, options) {
         ko.utils.extend(computedObservable, deferEvaluationOverrides);
     }
 
-    if (DEBUG) {
-        // #1731 - Aid debugging by exposing the computed's options
-        computedObservable["_options"] = options;
-    }
-
     if (state.disposeWhenNodeIsRemoved) {
         // Since this computed is associated with a DOM node, and we don't want to dispose the computed
         // until the DOM node is *removed* from the document (as opposed to never having been in the document),
@@ -99,7 +94,7 @@ ko.computed = function (evaluatorFunctionOrOptions, options) {
     // Attach a DOM node disposal callback so that the computed will be proactively disposed as soon as the node is
     // removed using ko.removeNode. But skip if isActive is false (there will never be any dependencies to dispose).
     if (state.disposeWhenNodeIsRemoved && computedObservable.isActive()) {
-        ko.utils.domNodeDisposal.addDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback = function () {
+        ko.utils.domNodeDisposal.addDisposeCallback(state.disposeWhenNodeIsRemoved, state.domNodeDisposalCallback = () => {
             computedObservable.dispose();
         });
     }
@@ -136,6 +131,26 @@ function computedBeginDependencyDetectionCallback(subscribable, id) {
     }
 }
 
+function evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext) {
+	// This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.
+	// You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection
+	// can be independent of try/finally blocks, which contributes to saving about 40% off the CPU
+	// overhead of computed evaluation (on V8 at least).
+
+	try {
+		return state.readFunction();
+	} finally {
+		ko.dependencyDetection.end();
+
+		// For each subscription no longer being used, remove it from the active subscriptions list and dispose it
+		if (dependencyDetectionContext.disposalCount && !state.isSleeping) {
+			ko.utils.objectForEach(dependencyDetectionContext.disposalCandidates, computedDisposeDependencyCallback);
+		}
+
+		state.isStale = state.isDirty = false;
+	}
+}
+
 var computedFn = {
     "equalityComparer": valuesArePrimitiveAndEqual,
     getDependenciesCount: function () {
@@ -284,7 +299,7 @@ var computedFn = {
         state.dependencyTracking = {};
         state.dependenciesCount = 0;
 
-        var newValue = this.evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext);
+        var newValue = evaluateImmediate_CallReadThenEndDependencyDetection(state, dependencyDetectionContext);
 
         if (!state.dependenciesCount) {
             computedObservable.dispose();
@@ -301,7 +316,6 @@ var computedFn = {
             }
 
             state.latestValue = newValue;
-            if (DEBUG) computedObservable._latestValue = newValue;
 
             computedObservable["notifySubscribers"](state.latestValue, "spectate");
 
@@ -319,25 +333,6 @@ var computedFn = {
 
         return changed;
     },
-    evaluateImmediate_CallReadThenEndDependencyDetection: (state, dependencyDetectionContext) => {
-        // This function is really part of the evaluateImmediate_CallReadWithDependencyDetection logic.
-        // You'd never call it from anywhere else. Factoring it out means that evaluateImmediate_CallReadWithDependencyDetection
-        // can be independent of try/finally blocks, which contributes to saving about 40% off the CPU
-        // overhead of computed evaluation (on V8 at least).
-
-        try {
-            return state.readFunction();
-        } finally {
-            ko.dependencyDetection.end();
-
-            // For each subscription no longer being used, remove it from the active subscriptions list and dispose it
-            if (dependencyDetectionContext.disposalCount && !state.isSleeping) {
-                ko.utils.objectForEach(dependencyDetectionContext.disposalCandidates, computedDisposeDependencyCallback);
-            }
-
-            state.isStale = state.isDirty = false;
-        }
-    },
     peek: function (evaluate) {
         // By default, peek won't re-evaluate, except while the computed is sleeping or to get the initial value when "deferEvaluation" is set.
         // Pass in true to evaluate if needed.
diff --git a/vendors/knockout/src/utils.domNodeDisposal.js b/vendors/knockout/src/utils.domNodeDisposal.js
index 5a26caf7c..a220f3c66 100644
--- a/vendors/knockout/src/utils.domNodeDisposal.js
+++ b/vendors/knockout/src/utils.domNodeDisposal.js
@@ -1,24 +1,23 @@
 
-ko.utils.domNodeDisposal = new (function () {
+ko.utils.domNodeDisposal = (() => {
     var domDataKey = ko.utils.domData.nextKey();
-    var cleanableNodeTypes = { 1: true, 8: true, 9: true };       // Element, Comment, Document
-    var cleanableNodeTypesWithDescendants = { 1: true, 9: true }; // Element, Document
+    var cleanableNodeTypes = { 1: 1, 8: 1, 9: 1 };       // Element, Comment, Document
+    var cleanableNodeTypesWithDescendants = { 1: 1, 9: 1 }; // Element, Document
 
-    function getDisposeCallbacksCollection(node, createIfNotFound) {
+    const getDisposeCallbacksCollection = (node, createIfNotFound) => {
         var allDisposeCallbacks = ko.utils.domData.get(node, domDataKey);
         if ((allDisposeCallbacks === undefined) && createIfNotFound) {
             allDisposeCallbacks = [];
             ko.utils.domData.set(node, domDataKey, allDisposeCallbacks);
         }
         return allDisposeCallbacks;
-    }
-    function destroyCallbacksCollection(node) {
-        ko.utils.domData.set(node, domDataKey, undefined);
-    }
+    },
 
-    function cleanSingleNode(node) {
+    destroyCallbacksCollection = node => ko.utils.domData.set(node, domDataKey, undefined),
+
+    cleanSingleNode = node => {
         // Run all the dispose callbacks
-        var callbacks = getDisposeCallbacksCollection(node, false);
+        var callbacks = getDisposeCallbacksCollection(node);
         if (callbacks) {
             callbacks = callbacks.slice(0); // Clone, as the array may be modified during iteration (typically, callbacks will remove themselves)
             for (var i = 0; i < callbacks.length; i++)
@@ -30,12 +29,11 @@ ko.utils.domNodeDisposal = new (function () {
 
         // Clear any immediate-child comment nodes, as these wouldn't have been found by
         // node.getElementsByTagName("*") in cleanNode() (comment nodes aren't elements)
-        if (cleanableNodeTypesWithDescendants[node.nodeType]) {
-            cleanNodesInList(node.childNodes, true/*onlyComments*/);
-        }
-    }
+        cleanableNodeTypesWithDescendants[node.nodeType]
+        && cleanNodesInList(node.childNodes, true/*onlyComments*/);
+    },
 
-    function cleanNodesInList(nodeList, onlyComments) {
+    cleanNodesInList = (nodeList, onlyComments) => {
         var cleanedNodes = [], lastCleanedNode;
         for (var i = 0; i < nodeList.length; i++) {
             if (!onlyComments || nodeList[i].nodeType === 8) {
@@ -45,21 +43,20 @@ ko.utils.domNodeDisposal = new (function () {
                 }
             }
         }
-    }
+    };
 
     return {
         addDisposeCallback : (node, callback) => {
             if (typeof callback != "function")
                 throw new Error("Callback must be a function");
-            getDisposeCallbacksCollection(node, true).push(callback);
+            getDisposeCallbacksCollection(node, 1).push(callback);
         },
 
         removeDisposeCallback : (node, callback) => {
-            var callbacksCollection = getDisposeCallbacksCollection(node, false);
+            var callbacksCollection = getDisposeCallbacksCollection(node);
             if (callbacksCollection) {
                 ko.utils.arrayRemoveItem(callbacksCollection, callback);
-                if (callbacksCollection.length == 0)
-                    destroyCallbacksCollection(node);
+                callbacksCollection.length || destroyCallbacksCollection(node);
             }
         },
 
@@ -70,9 +67,8 @@ ko.utils.domNodeDisposal = new (function () {
                     cleanSingleNode(node);
 
                     // ... then its descendants, where applicable
-                    if (cleanableNodeTypesWithDescendants[node.nodeType]) {
-                        cleanNodesInList(node.getElementsByTagName("*"));
-                    }
+                    cleanableNodeTypesWithDescendants[node.nodeType]
+                    && cleanNodesInList(node.getElementsByTagName("*"));
                 }
             });
 
@@ -81,8 +77,7 @@ ko.utils.domNodeDisposal = new (function () {
 
         removeNode : node => {
             ko.cleanNode(node);
-            if (node.parentNode)
-                node.parentNode.removeChild(node);
+            node.parentNode && node.parentNode.removeChild(node);
         }
     };
 })();