fix typo in test name

Author: jamestalmage

tests/unit/utils.spec.js

@@ -111,7 +111,7 @@ describe('$firebaseUtils', function () {
   });
 
   describe('#scopeData',function(){
-    it('$value, $priority, and $value are only private properties that get copied',function(){
+    it('$id, $priority, and $value are only private properties that get copied',function(){
       var data = {$id:'foo',$priority:'bar',$value:null,$private1:'baz',$private2:'foo'};
       expect($utils.scopeData(data)).toEqual({$id:'foo',$priority:'bar',$value:null});
     });