fix(startTag): fix tagname extraction

the original code magically worked for ng:foo but for nothing else

Author: IgorMinar

src/Angular.js

@@ -742,7 +742,7 @@ function startingTag(element) {
     // are not allowed to have children. So we just ignore it.
     element.html('');
   } catch(e) {};
-  return jqLite('<div>').append(element).html().replace(/\<\/[\w\:\-]+\>$/, '');
+  return jqLite('<div>').append(element).html().match(/^(<[^>]+>)/)[1];
 }
 
 

test/AngularSpec.js

@@ -512,7 +512,8 @@ describe('angular', function() {
 
   describe('startingElementHtml', function(){
     it('should show starting element tag only', function(){
-      expect(startingTag('<ng-abc x="2"><div>text</div></ng-abc>')).toEqual('<ng-abc x="2">');
+      expect(startingTag('<ng-abc x="2A"><div>text</div></ng-abc>')).
+          toBeOneOf('<ng-abc x="2A">', '<NG-ABC x="2A">');
     });
   });