Merge pull request #12 from jitowix/master

fix $elem is not defined

Author: yunlzheng

src/angular-knob.js

@@ -53,7 +53,7 @@ angular.module('ui.knob', [])
         });
 
         scope.$watch(attrs.knobOptions, function () {
-          $elem.trigger('configure',scope.$eval(attrs.knobOptions));
+          elem.trigger('configure',scope.$eval(attrs.knobOptions));
           renderKnob();
         }, true);