Helga

-----
- Fixed 140 - Allow simple string channel names for CHANNELS setting
- Merged PR 138 - Fix shell oneliner response

-----
- Fixed 137 - Chicken/egg situation with route in the same module as a command or match

-----
- Fixed 134 - Missing __init__.py in helga.bin causing console script issues

-----
- Fixed 133 - custom settings are not properly overriding client settings

-----
- Added full documentation and updated many docstrings.
- Removed package helga.plugins.core contents and placed in helga.plugins.__init__
- Updated setup.py to support pip >= 0.7
- Fixed 20 - Added case-insensitive command support.
- Fixed 131 - ResponseNotReady does not honor PLUGIN_FIRST_RESPONDER_ONLY = False

-----
- Fix UnicodeDecodeError for channel log web UI