fix(): from click to bind-click

According to the Angular Documentation, element has no method click [Ref](http://docs.angularjs.org/api/angular.element).

As you have not defined any dependencies, i assume that you have tested this directive within a "jquery-like enviroment" where you have click as method available, in my constellation i have non of these frameworks and this is why i get this error: `Object [object Object] has no method 'click'`.