Fix force orientation issue on some browser

Author: pandamicro

cocos2d/core/platform/CCEGLView.js

@@ -331,7 +331,9 @@ cc.EGLView = cc.Class.extend(/** @lends cc.view# */{
             cc.container.style.transformOrigin = '0px 0px 0px';
             this._isRotated = true;
         }
-        this._orientationChanging = false;
+        setTimeout(function () {
+            cc.view._orientationChanging = false;
+        }, 1000);
     },
 
     // hack