Fix($animate) : svg element with classNameFilter animation fix.

Author: sreeramu

src/ngAnimate/animateCss.js

@@ -363,7 +363,7 @@ var $AnimateCssProvider = ['$animateProvider', function($animateProvider) {
       var KEY = "$$ngAnimateParentKey";
       var parentNode = node.parentNode;
       var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);
-      return parentID + '-' + angular.isString(node.className) ? node.className : node.getAttribute('class') + '-' + extraClasses;
+      return parentID + '-' + node.getAttribute('class') + '-' + extraClasses;
     }
 
     function computeCachedCssStyles(node, className, cacheKey, properties) {

src/ngAnimate/animateQueue.js

@@ -361,7 +361,7 @@ var $$AnimateQueueProvider = ['$animateProvider', function($animateProvider) {
         return runner;
       }
 
-      var className = [angular.isString(node.className) ? node.className : node.getAttribute('class'), options.addClass, options.removeClass].join(' ');
+      var className = [node.getAttribute('class'), options.addClass, options.removeClass].join(' ');
       if (!isAnimatableClassName(className)) {
         close();
         return runner;