Added Sieve settings concept.

It fails due to i18n conflicts

dev/Settings/User/Sieve.js

@@ -0,0 +1,73 @@
+import { getNotification } from 'Common/Translator';
+
+import Remote from 'Remote/User/Fetch';
+
+//export class UserSettingsFilters /*extends AbstractViewSettings*/ {
+export class UserSettingsSieve /*extends AbstractViewSettings*/ {
+	constructor() {
+		const Sieve = window.Sieve;
+		this.scripts = Sieve.scripts;
+		this.loading = Sieve.loading;
+		this.serverError = Sieve.serverError;
+		this.serverErrorDesc = Sieve.serverErrorDesc;
+		this.scriptForDeletion = ko.observable(null).askDeleteHelper();
+	}
+
+	setError(text) {
+		this.serverError(true);
+		this.serverErrorDesc(text);
+	}
+
+	updateList() {
+		window.Sieve.updateList();
+	}
+
+	addScript() {
+		window.Sieve.ScriptView.showModal();
+	}
+
+	editScript(script) {
+		window.Sieve.ScriptView.showModal([script]);
+	}
+
+	deleteScript(script) {
+		this.serverError(false);
+		Remote.request('FiltersScriptDelete',
+			(iError, data) => {
+				if (iError) {
+					this.setError((data && data.ErrorMessageAdditional) || getNotification(iError));
+				} else {
+					this.scripts.remove(script);
+				}
+			},
+			{name:script.name()}
+		);
+	}
+
+	toggleScript(script) {
+		let name = script.active() ? '' : script.name();
+		this.serverError(false);
+		Remote.request('FiltersScriptActivate',
+			(iError, data) => {
+				if (iError) {
+					this.setError((data && data.ErrorMessageAdditional) || iError)
+				} else {
+					this.scripts.forEach(script => script.active(script.name() === name));
+				}
+			},
+			{name:name}
+		);
+	}
+
+	onBuild(oDom) {
+		oDom.addEventListener('click', event => {
+			const el = event.target.closestWithin('.script-item .e-action', oDom),
+				script = el && ko.dataFor(el);
+			script && this.editScript(script);
+		});
+	}
+
+	onShow() {
+		this.updateList();
+	}
+}