docs(*): simplify doc urls

we now have two types of namespaces:

- true namespace: angular.* - used for all global apis
- virtual namespace: ng.*, ngMock.*, ... - used for all DI modules

the virual namespaces have services under the second namespace level (e.g. ng.)
and filters and directives prefixed with filter: and directive: respectively
(e.g. ng.filter:orderBy, ng.directive:ngRepeat)

this simplifies urls and makes them a lot shorter while still avoiding name collisions

src/ng/cacheFactory.js

@@ -1,6 +1,6 @@
 /**
  * @ngdoc object
- * @name angular.module.ng.$cacheFactory
+ * @name ng.$cacheFactory
  *
  * @description
  * Factory that constructs cache objects.
@@ -153,12 +153,12 @@ function $CacheFactoryProvider() {
 
 /**
  * @ngdoc object
- * @name angular.module.ng.$templateCache
+ * @name ng.$templateCache
  *
  * @description
  * Cache used for storing html templates.
  *
- * See {@link angular.module.ng.$cacheFactory $cacheFactory}.
+ * See {@link ng.$cacheFactory $cacheFactory}.
  *
  */
 function $TemplateCacheProvider() {