Handle attendee conflicts in the Web interface

See @d7b010

UI/WebServerResources/js/Scheduler/Component.service.js

@@ -414,6 +414,15 @@
     });
   };
 
+  /**
+   * @function $resetGhost
+   * @desc Prepare the ghost object for the next drag by resetting appropriate attributes
+   */
+  Component.$resetGhost = function() {
+    this.$ghost.pointerHandler = null;
+    this.$ghost.component = null;
+  };
+
   /**
    * @function $parseDate
    * @desc Parse a date string with format YYYY-MM-DDTHH:MM
@@ -1035,8 +1044,9 @@
    * @function $save
    * @memberof Component.prototype
    * @desc Save the component to the server.
+   * @param {object} extraAttributes - additional attributes to send to the server
    */
-  Component.prototype.$save = function() {
+  Component.prototype.$save = function(extraAttributes) {
     var _this = this, options, path, component, date, dlp;
 
     component = this.$omit();
@@ -1106,6 +1116,8 @@
     if (this.occurrenceId)
       path.push(this.occurrenceId);
 
+    angular.extend(component, extraAttributes);
+
     return Component.$$resource.save(path.join('/'), component, options)
       .then(function(data) {
         // Make a copy of the data for an eventual reset