avoided doubly importing mixins

lib/network/Network.js

@@ -570,7 +570,6 @@ Network.prototype.setData = function(data, disableStart) {
 Network.prototype.setOptions = function (options) {
   if (options) {
     var prop;
-
     var fields = ['nodes','edges','smoothCurves','hierarchicalLayout','clustering','navigation',
       'keyboard','dataManipulation','onAdd','onEdit','onEditEdge','onConnect','onDelete','clickToUse'
     ];
@@ -688,24 +687,25 @@ Network.prototype.setOptions = function (options) {
     if (options.labels) {
       throw new Error('Option "labels" is deprecated. Use options "locale" and "locales" instead.');
     }
-  }
 
-  // (Re)loading the mixins that can be enabled or disabled in the options.
-  // load the force calculation functions, grouped under the physics system.
-  this._loadPhysicsSystem();
-  // load the navigation system.
-  this._loadNavigationControls();
-  // load the data manipulation system
-  this._loadManipulationSystem();
-  // configure the smooth curves
-  this._configureSmoothCurves();
+    // (Re)loading the mixins that can be enabled or disabled in the options.
+    // load the force calculation functions, grouped under the physics system.
+    this._loadPhysicsSystem();
+    // load the navigation system.
+    this._loadNavigationControls();
+    // load the data manipulation system
+    this._loadManipulationSystem();
+    // configure the smooth curves
+    this._configureSmoothCurves();
 
 
-  // bind keys. If disabled, this will not do anything;
-  this._createKeyBinds();
-  this.setSize(this.constants.width, this.constants.height);
-  this.moving = true;
-  this.start();
+    // bind keys. If disabled, this will not do anything;
+    this._createKeyBinds();
+
+    this.setSize(this.constants.width, this.constants.height);
+    this.moving = true;
+    this.start();
+  }
 };
 
 
@@ -732,11 +732,9 @@ Network.prototype._create = function () {
 //////////////////////////////////////////////////////////////////
 
   this.frame.canvas = document.createElement("canvas");
-
   this.frame.canvas.style.position = 'relative';
   this.frame.appendChild(this.frame.canvas);
 
-
   if (!this.frame.canvas.getContext) {
     var noCanvas = document.createElement( 'DIV' );
     noCanvas.style.color = 'red';
@@ -746,17 +744,13 @@ Network.prototype._create = function () {
     this.frame.canvas.appendChild(noCanvas);
   }
   else {
-
     var ctx = this.frame.canvas.getContext("2d");
-
     this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio ||
               ctx.mozBackingStorePixelRatio ||
               ctx.msBackingStorePixelRatio ||
               ctx.oBackingStorePixelRatio ||
               ctx.backingStorePixelRatio || 1);
 
-
-
     this.frame.canvas.getContext("2d").setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);
   }
 
@@ -784,7 +778,7 @@ Network.prototype._create = function () {
   this.hammerFrame = Hammer(this.frame, {
     prevent_default: true
   });
-  this.hammerFrame.on('release',   me._onRelease.bind(me) );
+  this.hammerFrame.on('release', me._onRelease.bind(me) );
 
   // add the frame to the container element
   this.containerElement.appendChild(this.frame);