Description of problem:


Version-Release number of selected component (if applicable):
devenv_1642 

How reproducible:
Always

Steps to Reproduce:
1. Call REST API entry point
$ curl -k -X GET -H 'Accept: application/xml' --user jialiu:XX https://ec2-184-73-110-196.compute-1.amazonaws.com/broker/rest/api
<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <data>
    <link>
      <optional-params/>
      <rel>List cartridges</rel>
      <method>GET</method>
      <href>/cartridges</href>
      <required-params/>
    </link>
    <link>
      <optional-params/>
      <rel>Create new domain</rel>
      <method>POST</method>
      <href>/domains</href>
      <required-params>
        <param>
          <valid-options/>
          <description>Name of the domain</description>
          <name>namespace</name>
          <type>string</type>
        </param>
      </required-params>
    </link>
    <link>
      <optional-params/>
      <rel>API entry point</rel>
      <method>GET</method>
      <href>/api</href>
      <required-params/>
    </link>
    <link>
      <optional-params/>
      <rel>Get user information</rel>
      <method>GET</method>
      <href>/user</href>
      <required-params/>
    </link>
    <link>
      <optional-params/>
      <rel>List domains</rel>
      <method>GET</method>
      <href>/domains</href>
      <required-params/>
    </link>
  </data>
  <messages/>
  <version>1.0</version>
  <type>links</type>
</response>

2. There is not any entry about application_template
3.
  
Actual results:
There is not any entry about application_template, this is hard to user to get know to rest api support this entry point.

Expected results:
A entry about application_template should be shown in the output of API entry point

Additional info: