[Templates] Allow only template property for containers

...to work around difficulties with transclusion using
templateLinker.

docs/src/guide/index.md

@@ -911,6 +911,23 @@ which should return a boolean value, and will be used by the platform to filter
 down capabilities to those which should be exposed by specific domain objects, 
 based on their domain object models. 
 
+## Containers Category
+
+Containers provide options for the `mct-container` directive.
+
+The definition for an extension in the `containers` category should include:
+
+* `key`: An identifier for the container.
+* `template`: An Angular template for the container, including an
+  `ng-transclude` where contained content should go.
+* `attributes`: An array of attribute names. The values associated with
+   these attributes will be exposed in the template's scope under the
+   name provided by the `alias` property.
+* `alias`: The property name in scope under which attributes will be
+  exposed. Optional; defaults to "container".
+
+Note that `templateUrl` is not supported for `containers`.
+
 ## Controls Category
 
 Controls provide options for the `mct-control` directive. 

platform/commonUI/general/bundle.js

@@ -319,7 +319,6 @@ define([
                     "key": "mctContainer",
                     "implementation": MCTContainer,
                     "depends": [
-                        "templateLinker",
                         "containers[]"
                     ]
                 },

platform/commonUI/general/src/directives/MCTContainer.js

@@ -42,7 +42,7 @@ define(
          * @memberof platform/commonUI/general
          * @constructor
          */
-        function MCTContainer(templateLinker, containers) {
+        function MCTContainer(containers) {
             var containerMap = {};
 
             // Initialize container map from extensions
@@ -67,11 +67,9 @@ define(
                     var key = attrs.key,
                         container = containerMap[key],
                         alias = "container",
-                        copiedAttributes = {},
-                        changeTemplate = templateLinker.link(scope, element);
+                        copiedAttributes = {};
 
                     if (container) {
-                        changeTemplate(container);
                         alias = container.alias || alias;
                         (container.attributes || []).forEach(function (attr) {
                             copiedAttributes[attr] = attrs[attr];
@@ -79,6 +77,12 @@ define(
                     }
 
                     scope[alias] = copiedAttributes;
+                },
+
+                template: function (element, attrs) {
+                    var key = attrs.key,
+                        container = containerMap[key];
+                    return container ? container.template : "";
                 }
             };
         }