Use path-mounted keystone when running in httpd

When running in httpd, keystone accepts requests on /identity and
/identity_v2_admin.

The path endpoints should be preferred over the ports so keystone
is configured to point applications to the path endpoints by
setting admin_endpoint and public_endpoint.

Change-Id: I34569b9e03c3f36748c92d803349e22a7ee1a633
diff --git a/files/apache-keystone.template b/files/apache-keystone.template
index 428544f..8a4b0f0 100644
--- a/files/apache-keystone.template
+++ b/files/apache-keystone.template
@@ -44,8 +44,8 @@
     WSGIPassAuthorization On
 </Location>
 
-Alias /identity_admin %KEYSTONE_BIN%/keystone-wsgi-admin
-<Location /identity_admin>
+Alias /identity_v2_admin %KEYSTONE_BIN%/keystone-wsgi-admin
+<Location /identity_v2_admin>
     SetHandler wsgi-script
     Options +ExecCGI