fix(dropdown): remove C restrictions to avoid conflicts

Fixes angular-ui#2156

BREAKING CHANGES: Both `dropdown` and `dropdown-toggle` are only attribute directives

Before:
  ```html
  <btutton class="dropdown-toggle" ...>
  ```
  After:
  ```html
  <btutton class="dropdown-toggle" dropdown-toggle ...>
  ```

Closes angular-ui#2170

misc/demo/index.html

@@ -38,8 +38,8 @@
                     <a href="#top" role="button" class="navbar-brand">
                         UI Bootstrap
                     </a>
-                    <li class="dropdown">
-                        <a role="button" class="dropdown-toggle">
+                    <li class="dropdown" dropdown>
+                        <a role="button" class="dropdown-toggle" dropdown-toggle>
                             Directives <b class="caret"></b>
                         </a>
                         <ul class="dropdown-menu">

src/dropdown/docs/demo.html

@@ -1,8 +1,8 @@
 
 <div ng-controller="DropdownCtrl">
     <!-- Simple dropdown -->
-    <span class="dropdown" on-toggle="toggled(open)">
-      <a href class="dropdown-toggle">
+    <span class="dropdown" dropdown on-toggle="toggled(open)">
+      <a href class="dropdown-toggle" dropdown-toggle>
         Click me for a dropdown, yo!
       </a>
       <ul class="dropdown-menu">
@@ -14,7 +14,7 @@
 
     <!-- Single button -->
     <div class="btn-group" dropdown is-open="status.isopen">
-      <button type="button" class="btn btn-primary dropdown-toggle" ng-disabled="disabled">
+      <button type="button" class="btn btn-primary dropdown-toggle" dropdown-toggle ng-disabled="disabled">
         Button dropdown <span class="caret"></span>
       </button>
       <ul class="dropdown-menu" role="menu">
@@ -29,7 +29,7 @@
     <!-- Split button -->
     <div class="btn-group" dropdown>
       <button type="button" class="btn btn-danger">Action</button>
-      <button type="button" class="btn btn-danger dropdown-toggle">
+      <button type="button" class="btn btn-danger dropdown-toggle" dropdown-toggle>
         <span class="caret"></span>
         <span class="sr-only">Split button!</span>
       </button>

src/dropdown/dropdown.js

@@ -114,7 +114,6 @@ angular.module('ui.bootstrap.dropdown', [])
 
 .directive('dropdown', function() {
   return {
-    restrict: 'CA',
     controller: 'DropdownController',
     link: function(scope, element, attrs, dropdownCtrl) {
       dropdownCtrl.init( element );
@@ -124,7 +123,6 @@ angular.module('ui.bootstrap.dropdown', [])
 
 .directive('dropdownToggle', function() {
   return {
-    restrict: 'CA',
     require: '?^dropdown',
     link: function(scope, element, attrs, dropdownCtrl) {
       if ( !dropdownCtrl ) {

src/dropdown/test/dropdown.spec.js

@@ -26,7 +26,7 @@ describe('dropdownToggle', function() {
 
   describe('basic', function() {
     function dropdown() {
-      return $compile('<li class="dropdown"><a href dropdown-toggle></a><ul><li><a href>Hello</a></li></ul></li>')($rootScope);
+      return $compile('<li dropdown><a href dropdown-toggle></a><ul><li><a href>Hello</a></li></ul></li>')($rootScope);
     }
 
     beforeEach(function() {
@@ -99,20 +99,20 @@ describe('dropdownToggle', function() {
     });
 
     it('should not toggle if the element has `disabled` class', function() {
-      var elm = $compile('<li class="dropdown"><a class="disabled" dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
+      var elm = $compile('<li dropdown><a class="disabled" dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
       clickDropdownToggle( elm );
       expect(elm.hasClass('open')).toBe(false);
     });
 
     it('should not toggle if the element is disabled', function() {
-      var elm = $compile('<li class="dropdown"><button disabled="disabled" dropdown-toggle></button><ul><li>Hello</li></ul></li>')($rootScope);
+      var elm = $compile('<li dropdown><button disabled="disabled" dropdown-toggle></button><ul><li>Hello</li></ul></li>')($rootScope);
       elm.find('button').click();
       expect(elm.hasClass('open')).toBe(false);
     });
 
     it('should not toggle if the element has `ng-disabled` as true', function() {
       $rootScope.isdisabled = true;
-      var elm = $compile('<li class="dropdown"><div ng-disabled="isdisabled" dropdown-toggle></div><ul><li>Hello</li></ul></li>')($rootScope);
+      var elm = $compile('<li dropdown><div ng-disabled="isdisabled" dropdown-toggle></div><ul><li>Hello</li></ul></li>')($rootScope);
       $rootScope.$digest();
       elm.find('div').click();
       expect(elm.hasClass('open')).toBe(false);
@@ -125,7 +125,7 @@ describe('dropdownToggle', function() {
 
     it('should unbind events on scope destroy', function() {
       var $scope = $rootScope.$new();
-      var elm = $compile('<li class="dropdown"><button ng-disabled="isdisabled" dropdown-toggle></button><ul><li>Hello</li></ul></li>')($scope);
+      var elm = $compile('<li dropdown><button ng-disabled="isdisabled" dropdown-toggle></button><ul><li>Hello</li></ul></li>')($scope);
       $scope.$digest();
 
       var buttonEl = elm.find('button');
@@ -171,7 +171,7 @@ describe('dropdownToggle', function() {
   describe('without trigger', function() {
     beforeEach(function() {
       $rootScope.isopen = true;
-      element = $compile('<li class="dropdown" is-open="isopen"><ul><li>Hello</li></ul></li>')($rootScope);
+      element = $compile('<li dropdown is-open="isopen"><ul><li>Hello</li></ul></li>')($rootScope);
       $rootScope.$digest();
     });
 
@@ -189,7 +189,7 @@ describe('dropdownToggle', function() {
   describe('`is-open`', function() {
     beforeEach(function() {
       $rootScope.isopen = true;
-      element = $compile('<li class="dropdown" is-open="isopen"><a href dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
+      element = $compile('<li dropdown is-open="isopen"><a href dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
       $rootScope.$digest();
     });
 
@@ -225,7 +225,7 @@ describe('dropdownToggle', function() {
     beforeEach(function() {
       $rootScope.toggleHandler = jasmine.createSpy('toggleHandler');
       $rootScope.isopen = false;
-      element = $compile('<li class="dropdown" on-toggle="toggleHandler(open)"  is-open="isopen"><a dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
+      element = $compile('<li dropdown on-toggle="toggleHandler(open)"  is-open="isopen"><a dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
       $rootScope.$digest();
     });
 
@@ -247,7 +247,7 @@ describe('dropdownToggle', function() {
     beforeEach(function() {
       $rootScope.toggleHandler = jasmine.createSpy('toggleHandler');
       $rootScope.isopen = true;
-      element = $compile('<li class="dropdown" on-toggle="toggleHandler(open)" is-open="isopen"><a dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
+      element = $compile('<li dropdown on-toggle="toggleHandler(open)" is-open="isopen"><a dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
       $rootScope.$digest();
     });
 
@@ -269,7 +269,7 @@ describe('dropdownToggle', function() {
   describe('`on-toggle` without is-open', function() {
     beforeEach(function() {
       $rootScope.toggleHandler = jasmine.createSpy('toggleHandler');
-      element = $compile('<li class="dropdown" on-toggle="toggleHandler(open)"><a dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
+      element = $compile('<li dropdown on-toggle="toggleHandler(open)"><a dropdown-toggle></a><ul><li>Hello</li></ul></li>')($rootScope);
       $rootScope.$digest();
     });