Bug 994986 - Remove 'rhc cartridge' because it conflicts with other aliases

Ruby 1.8.7 has random order hashes, and depending on how the commands load the 'rhc cartridge' alias (to list) and 'rhc cartridges' were getting confused.  Since we don't alias the root command in other scenarios, I've removed 'rhc cartridge' as an alias.
Merge pull request #441 from smarterclayton/bug_994986_remove_old_cartridge_alias

Merged by openshift-bot
Bug 994174 - rhc not displaying CLIENT_MESSAGE returned by broker
Automatic commit of package [rhc] release [1.13.4-1].
Merge pull request #442 from jwforres/bug_994174_rhc_client_messages_not_displayed

Merged by openshift-bot