fix(ngAnimate): rename ng-animate-anchor to ng-anchor

BREAKING CHANGE: if your CSS code made use of the `ng-animate-anchor`
CSS class for referencing the anchored animation element then your
code must now use `ng-anchor` instead.

Author: matsko

css/angular.css

@@ -14,6 +14,6 @@ ng\:form {
   visibility:hidden;
 }
 
-.ng-animate-anchor {
+.ng-anchor {
   position:absolute;
 }

src/ngAnimate/animateCssDriver.js

@@ -4,7 +4,7 @@ var $$AnimateCssDriverProvider = ['$$animationProvider', function($$animationPro
   $$animationProvider.drivers.push('$$animateCssDriver');
 
   var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';
-  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-animate-anchor';
+  var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';
   var NG_ANIMATE_ANCHOR_SUFFIX = '-anchor';
 
   var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';

test/ngAnimate/animateCssDriverSpec.js

@@ -599,7 +599,7 @@ describe("ngAnimate $$animateCssDriver", function() {
         expect(anchorDetails.event).toBeFalsy();
       }));
 
-      it("should add the `ng-animate-anchor` class to the cloned anchor element",
+      it("should add the `ng-anchor` class to the cloned anchor element",
         inject(function($rootElement, $$rAF) {
 
         var fromAnchor = jqLite('<div></div>');
@@ -620,7 +620,7 @@ describe("ngAnimate $$animateCssDriver", function() {
         }).start();
 
         var clonedAnchor = captureLog.pop().element;
-        expect(clonedAnchor).toHaveClass('ng-animate-anchor');
+        expect(clonedAnchor).toHaveClass('ng-anchor');
       }));
 
       it("should add and remove the `ng-animate-shim` class on the in anchor element during the animation",