fix ngModule tag, api-list and json encoding

tools/api-builder/angular.io-package/tag-defs/ngModule.js

@@ -1,6 +1,5 @@
 module.exports = function() {
   return {
-    name: 'ngModule',
-    multi: true
+    name: 'ngModule'
   };
 };

tools/api-builder/angular.io-package/templates/api-list-data.template.html

@@ -7,8 +7,6 @@
       "docType": "{$ item.docType $}",
       "stability": "{$ item.stability $}",
       "secure": "{$ item.security $}",
-      "howToUse": "{$ item.howToUse | replace('"','\\"') $}",
-      "whatItDoes": {% if item.whatItDoes %}"Exists"{% else %}"Not Done"{% endif %},
       "barrel" : "{$ module | replace("/index", "") $}"
     }{% if not loop.last %},{% endif %}
   {% endfor %}]{% if not loop.last %},{% endif %}

tools/api-builder/angular.io-package/templates/layout/_ng-module.html

@@ -0,0 +1,5 @@
+div(layout="row" layout-xs="column" class="row-margin ng-cloak")
+  div(flex="20" flex-xs="100")
+    h2(class="h2-api-docs") NgModule
+  div(class="code-links" flex="80" flex-xs="100").
+    {$ doc.ngModule $}

tools/api-builder/angular.io-package/templates/pipe.template.html

@@ -13,6 +13,8 @@ include {$ relativePath(doc.path, '_util-fns') $}
 
 {% include "layout/_how-to-use.html" %}
 
+{% include "layout/_ng-module.html" %}
+
 div(layout="row" layout-xs="column" class="row-margin ng-cloak")
   div(flex="20" flex-xs="100")
     h2(class="h2-api-docs") Description