A bunch of commits that give hippybot some new features

* Improved docstring handling
* increased logging
* Added ability to have content commands (@contentcmd) that are made to be able to work with any message (example is ++bot from http://partychapp.appspot.com/)
* stopped using function name and migrated hippybot to use the name arg (as an override) for @botcmd that jabberbot uses
* removed case when determining of a message is intended for hippybot
* Hid the load plugins command from help