Move template names to enum in FreeMarkerHttpServlet and constants in subclasses.

webapp/web/templates/freemarker/body/error/error-titledMessage.ftl

@@ -0,0 +1,7 @@
+<#-- $This file is distributed under the terms of the license in /doc/license.txt$ -->
+
+<#-- Standard template to display an error message generated from any controller. Keeps this out of individual templates. -->
+
+<h2>${title}</h2>
+
+<#include "errorMessage.ftl">

webapp/web/templates/freemarker/body/individual-help.ftl

@@ -0,0 +1,7 @@
+<#-- $This file is distributed under the terms of the license in /doc/license.txt$ -->
+
+<#-- Template for help on individual page -->
+
+<h2>Quick Notes on Using Individual:</h2>
+
+<p>id is the id of the entity to query for. netid also works.</p>