chore(dgeni-packages): update to use 0.15.2

This version includes the feature to hide members that
are marked private in TypeScript.

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

@@ -1,5 +1,5 @@
-{% include "lib/githubLinks.html" -%}
-{% include "lib/paramList.html" -%}
+{% import "lib/githubLinks.html" as github -%}
+{% import "lib/paramList.html" as params -%}
 {% extends 'layout/base.template.html' -%}
 
 {% block body %}
@@ -19,13 +19,13 @@ div(layout="row" layout-xs="column" class="row-margin ng-cloak")
   div(class="code-links" flex="80" flex-xs="100")
     pre.prettyprint.no-bg
       code.
-        export {$ doc.name $}{$ paramList(doc.parameters) | indent(8, true) | trim $}{$ returnType(doc.returnType) $}
+        export {$ doc.name $}{$ params.paramList(doc.parameters) | indent(8, true) | trim $}{$ params.returnType(doc.returnType) $}
     :marked
       {%- if not doc.notYetDocumented %}
 {$ doc.description | indentForMarkdown(6) | trimBlankLines $}
       {% endif %}
 
 p.location-badge.
-  exported from {@link {$ doc.moduleDoc.id $} {$doc.moduleDoc.id $} } defined in {$ githubViewLink(doc) $}
+  exported from {@link {$ doc.moduleDoc.id $} {$doc.moduleDoc.id $} } defined in {$ github.githubViewLink(doc) $}
 
 {% endblock %}