diff -r 318533413200 -r a1707c607eec src/pyams_skin/resources/js/ext/tinymce/dev/classes/util/Observable.js
--- a/src/pyams_skin/resources/js/ext/tinymce/dev/classes/util/Observable.js	Sun Jul 19 02:02:20 2020 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,129 +0,0 @@
-/**
- * Observable.js
- *
- * Copyright, Moxiecode Systems AB
- * Released under LGPL License.
- *
- * License: http://www.tinymce.com/license
- * Contributing: http://www.tinymce.com/contributing
- */
-
-/**
- * This mixin will add event binding logic to classes.
- *
- * @mixin tinymce.util.Observable
- */
-define("tinymce/util/Observable", [
-	"tinymce/util/EventDispatcher"
-], function(EventDispatcher) {
-	function getEventDispatcher(obj) {
-		if (!obj._eventDispatcher) {
-			obj._eventDispatcher = new EventDispatcher({
-				scope: obj,
-				toggleEvent: function(name, state) {
-					if (EventDispatcher.isNative(name) && obj.toggleNativeEvent) {
-						obj.toggleNativeEvent(name, state);
-					}
-				}
-			});
-		}
-
-		return obj._eventDispatcher;
-	}
-
-	return {
-		/**
-		 * Fires the specified event by name.
-		 *
-		 * @method fire
-		 * @param {String} name Name of the event to fire.
-		 * @param {Object?} args Event arguments.
-		 * @param {Boolean?} bubble True/false if the event is to be bubbled.
-		 * @return {Object} Event args instance passed in.
-		 * @example
-		 * instance.fire('event', {...});
-		 */
-		fire: function(name, args, bubble) {
-			var self = this;
-
-			// Prevent all events except the remove event after the instance has been removed
-			if (self.removed && name !== "remove") {
-				return args;
-			}
-
-			args = getEventDispatcher(self).fire(name, args, bubble);
-
-			// Bubble event up to parents
-			if (bubble !== false && self.parent) {
-				var parent = self.parent();
-				while (parent && !args.isPropagationStopped()) {
-					parent.fire(name, args, false);
-					parent = parent.parent();
-				}
-			}
-
-			return args;
-		},
-
-		/**
-		 * Binds an event listener to a specific event by name.
-		 *
-		 * @method on
-		 * @param {String} name Event name or space separated list of events to bind.
-		 * @param {callback} callback Callback to be executed when the event occurs.
-		 * @param {Boolean} first Optional flag if the event should be prepended. Use this with care.
-		 * @return {Object} Current class instance.
-		 * @example
-		 * instance.on('event', function(e) {
-		 *     // Callback logic
-		 * });
-		 */
-		on: function(name, callback, prepend) {
-			return getEventDispatcher(this).on(name, callback, prepend);
-		},
-
-		/**
-		 * Unbinds an event listener to a specific event by name.
-		 *
-		 * @method off
-		 * @param {String?} name Name of the event to unbind.
-		 * @param {callback?} callback Callback to unbind.
-		 * @return {Object} Current class instance.
-		 * @example
-		 * // Unbind specific callback
-		 * instance.off('event', handler);
-		 *
-		 * // Unbind all listeners by name
-		 * instance.off('event');
-		 *
-		 * // Unbind all events
-		 * instance.off();
-		 */
-		off: function(name, callback) {
-			return getEventDispatcher(this).off(name, callback);
-		},
-
-		/**
-		 * Bind the event callback and once it fires the callback is removed.
-		 *
-		 * @method once
-		 * @param {String} name Name of the event to bind.
-		 * @param {callback} callback Callback to bind only once.
-		 * @return {Object} Current class instance.
-		 */
-		once: function(name, callback) {
-			return getEventDispatcher(this).once(name, callback);
-		},
-
-		/**
-		 * Returns true/false if the object has a event of the specified name.
-		 *
-		 * @method hasEventListeners
-		 * @param {String} name Name of the event to check for.
-		 * @return {Boolean} true/false if the event exists or not.
-		 */
-		hasEventListeners: function(name) {
-			return getEventDispatcher(this).has(name);
-		}
-	};
-});
\ No newline at end of file