Description of problem:
When deleting an app on a node which is using vhost frontend, the httpd config files under /var/lib/openshift/.httpd.d will be deleted by frontend_plugin of watchman now.
But frontend_plugin would not delete the gear_dir when the gear doesn't have a *.conf file, such as db cartridge gear.


Version-Release number of selected component (if applicable):
2.2/2014-11-26.3
openshift-origin-node-util-1.31.3.1-1.el6op.noarch

How reproducible:
Always

Steps to Reproduce:
1.Create a scalable ruby app with mysql-5.1 embedded. These files and directories would generate under /var/lib/openshift/.httpd.d/.
The ruby+haproxy gear(547c2c19e5fed5f62e0000a6) has a httpd *.conf file and a corresponding directory. While the mysql(547c2c7ce5fed5f62e0000c6) gear only get an empty directory.

[root@node1 .httpd.d]# ls -al
...
-rw-r--r--. 1 root root     2539 Dec  1 01:51 547c2c19e5fed5f62e0000a6_domain1_0_testapp.conf
drwxr-xr-x. 2 root root     4096 Dec  1 01:51 547c2c19e5fed5f62e0000a6_domain1_testapp
drwxr-xr-x. 2 root root     4096 Dec  1 01:53 547c2c7ce5fed5f62e0000c6_domain1_547c2c7ce5fed5f62e0000c6
...


2.Delete the app. Use openshift-watchman to delete the left httpd config files.
  Set FRONTEND_CLEANUP_PERIOD=10 in /etc/sysconfig/watchman
  Change the Line 53 in /etc/openshift/watchman/plugins.d/frontend_plugin.rb as:
  "next if File.mtime(conf_file) > (DateTime.now - Rational(1, 86400))" to make the testing faster, or else need to wait for 1 hour.

3.Restart openshift-watchman service. Check the httpd files and directories agaiin. The empty dir of mysql gear still there.

[root@node1 .httpd.d]# ls -al
total 60
...
drwxr-xr-x. 2 root root     4096 Dec  1 01:53 547c2c7ce5fed5f62e0000c6_domain1_547c2c7ce5fed5f62e0000c6


Actual results:


Expected results:
All the files related to the deleted app should be removed.

Additional info: