diff --git a/html/app.js b/html/app.js
index 1c3e4eec..1d791cd2 100644
--- a/html/app.js
+++ b/html/app.js
@@ -2739,367 +2739,6 @@ if (window.CefSharp) {
 			});
 		};
 
-		// API: Feedback
-
-		API.feedback = {};
-		API.isFeedbackLoading = false;
-
-		API.$on('LOGIN', function () {
-			this.feedback = {};
-			this.isFeedbackLoading = false;
-		});
-
-		API.$on('FEEDBACK', function (args) {
-			args.ref = this.updateFeedback(args.json);
-		});
-
-		API.$on('FEEDBACK:LIST', function (args) {
-			args.json.forEach((json) => {
-				this.$emit('FEEDBACK', {
-					param: {
-						feedbackId: json.id
-					},
-					json
-				});
-			});
-		});
-
-		API.$on('FEEDBACK:DELETE', function (args) {
-			var ctx = this.feedback[args.param.feedbackId];
-			if (ctx &&
-				!ctx.$isExpired) {
-				ctx.$isExpired = true;
-				args.ref = ctx;
-				this.$emit('FEEDBACK:@DELETE', {
-					param: {
-						feedbackId: ctx.id
-					},
-					ref: ctx
-				});
-			}
-		});
-
-		API.markAllFeedbacksAsExpired = function () {
-			for (var key in this.feedback) {
-				var ctx = this.feedback[key];
-				if (!ctx.$isExpired) {
-					ctx.$isExpired = true;
-				}
-			}
-		};
-
-		API.checkExpiredFeedbacks = function () {
-			for (var key in this.feedback) {
-				var ctx = this.feedback[key];
-				if (ctx.$isExpired &&
-					!ctx.$isExpired) {
-					ctx.$isExpired = true;
-					this.$emit('FEEDBACK:@DELETE', {
-						param: {
-							feedbackId: ctx.id
-						},
-						ref: ctx
-					});
-				}
-			}
-		};
-
-		API.refreshFeedback = function () {
-			if (!this.isFeedbackLoading) {
-				this.isFeedbackLoading = true;
-				this.markAllFeedbacksAsExpired();
-				this.bulk({
-					fn: 'getFeedbacks',
-					N: -1,
-					param: {
-						n: 100,
-						offset: 0
-					},
-					done: (ok) => {
-						if (ok) {
-							this.checkExpiredFeedbacks();
-						}
-						this.isFeedbackLoading = false;
-					}
-				});
-			}
-		};
-
-		API.updateFeedback = function (ref) {
-			var ctx = this.feedback[ref.id];
-			if (ctx) {
-				Object.assign(ctx, ref);
-			} else {
-				ctx = {
-					id: ref.id,
-					type: '',
-					reason: '',
-					commenterId: '',
-					commenterName: '',
-					contentId: '',
-					contentType: '',
-					contentVersion: '',
-					contentName: '',
-					contentAuthorId: '',
-					contentAuthorName: '',
-					tags: [],
-					// custom
-					$isExpired: false,
-					//
-					...ref
-				};
-				this.feedback[ctx.id] = ctx;
-			}
-			ctx.$isExpired = false;
-			return ctx;
-		};
-
-		/*
-			param: {
-				n: number,
-				offset: number
-			}
-		*/
-		API.getFeedbacks = function (param) {
-			return this.call(`users/${this.currentUser.id}/feedback`, {
-				method: 'GET',
-				body: param
-			}).then((json) => {
-				var args = {
-					param,
-					json
-				};
-				this.$emit('FEEDBACK:LIST', args);
-				return args;
-			});
-		};
-
-		/*
-			param: {
-				feedbackId: string
-			}
-		*/
-		API.deleteFeedback = function (param) {
-			return this.call(`feedback/${param.feedbackId}`, {
-				method: 'DELETE',
-				body: param
-			}).then((json) => {
-				var args = {
-					param,
-					json
-				};
-				this.$emit('FEEDBACK:DELETE', args);
-				return args;
-			});
-		};
-
-		// API: Thing
-
-		API.thing = {};
-		API.isThingLoading = false;
-
-		API.$on('LOGIN', function () {
-			this.thing = {};
-			this.isThingLoading = false;
-		});
-
-		API.$on('THING', function (args) {
-			args.ref = this.updateThing(args.json);
-		});
-
-		API.$on('THING:LIST', function (args) {
-			args.json.forEach((json) => {
-				this.$emit('THING', {
-					param: {
-						thingId: json.id
-					},
-					json
-				});
-			});
-		});
-
-		API.$on('THING:ADD', function (args) {
-			this.$emit('THING', {
-				param: {
-					thingId: args.json.id
-				},
-				json: args.json
-			});
-		});
-
-		API.$on('THING:SAVE', function (args) {
-			this.$emit('THING', {
-				param: {
-					thingId: args.json.id
-				},
-				json: args.json
-			});
-		});
-
-		API.$on('THING:DELETE', function (args) {
-			var ctx = this.thing[args.param.thingId];
-			if (ctx &&
-				!ctx.$isExpired) {
-				ctx.$isExpired = true;
-				args.ref = ctx;
-				this.$emit('THING:@DELETE', {
-					param: {
-						thingId: ctx.id
-					},
-					ref: ctx
-				});
-			}
-		});
-
-		API.markAllThingsAsExpired = function () {
-			for (var key in this.thing) {
-				var ctx = this.thing[key];
-				if (!ctx.$isExpired) {
-					ctx.$isExpired = true;
-				}
-			}
-		};
-
-		API.checkExpiredThings = function () {
-			for (var key in this.thing) {
-				var ctx = this.thing[key];
-				if (ctx.$isExpired &&
-					!ctx.$isExpired) {
-					ctx.$isExpired = true;
-					this.$emit('THING:@DELETE', {
-						param: {
-							thingId: ctx.id
-						},
-						ref: ctx
-					});
-				}
-			}
-		};
-
-		API.refreshThing = function () {
-			if (!this.isThingLoading) {
-				this.isThingLoading = true;
-				this.markAllThingsAsExpired();
-				this.bulk({
-					fn: 'getThings',
-					N: -1,
-					param: {
-						n: 100,
-						offset: 0
-					},
-					done: (ok) => {
-						if (ok) {
-							this.checkExpiredThings();
-						}
-						this.isThingLoading = false;
-					}
-				});
-			}
-		};
-
-		API.updateThing = function (ref) {
-			var ctx = this.thing[ref.id];
-			if (ctx) {
-				Object.assign(ctx, ref);
-			} else {
-				ctx = {
-					id: ref.id,
-					ownerId: '',
-					ownerDisplayName: '',
-					thingProperty: '',
-					otherThingProperty: '',
-					tags: [],
-					// custom
-					$isExpired: false,
-					//
-					...ref
-				};
-				this.thing[ctx.id] = ctx;
-			}
-			ctx.$isExpired = false;
-		};
-
-		/*
-			param: {
-				n: number,
-				offset: number
-			}
-		*/
-		API.getThings = function (param) {
-			return this.call('things', {
-				method: 'GET',
-				body: param
-			}).then((json) => {
-				var args = {
-					param,
-					json
-				};
-				this.$emit('THING:LIST', args);
-				return args;
-			});
-		};
-
-		/*
-			param: {
-				thingId: string,
-				thingProperty: string,
-				tags: string
-			}
-		*/
-		API.addThing = function (param) {
-			return this.call('things', {
-				method: 'POST',
-				body: param
-			}).then((json) => {
-				var args = {
-					param,
-					json
-				};
-				this.$emit('THING:ADD', args);
-				return args;
-			});
-		};
-
-		/*
-			param: {
-				thingId: string,
-				thingProperty: string,
-				tags: string
-			}
-		*/
-		API.saveThing = function (param) {
-			return this.call(`things/${param.thingId}`, {
-				method: 'PUT',
-				body: param
-			}).then((json) => {
-				var args = {
-					param,
-					json
-				};
-				this.$emit('THING:SAVE', args);
-				return args;
-			});
-		};
-
-		/*
-			param: {
-				thingId: string
-			}
-		*/
-		API.deleteThing = function (param) {
-			return this.call(`things/${param.thingId}`, {
-				method: 'DELETE',
-				body: param
-			}).then((json) => {
-				var args = {
-					param,
-					json
-				};
-				this.$emit('THING:DELETE', args);
-				return args;
-			});
-		};
-
 		// API: WebSocket
 
 		API.webSocket = false;