fetch issues from Github (no closing, yet)
*initial try
added github api, login via OAuth token
small fix to see it running
Merge branch 'master' into qtgui
Fixed GitHub login, improved login dialog
added broadcasting capabilities - not tested yet
fix for the broadcast port
refactored asynchronous calls to GitHub API, fixed login dialog
extracted asynchronous call tools, some refactoring
Added documentation
Merge branch 'groups' into qtgui

Conflicts:
	lunchinator/lunch_settings.py
* small fix: continue broadcasting after finding yourself
*replaced exception with logging
*bugfix: group settings not read
*added prototype groups plugin
*added groups and members command
*removed double import
*fix for kill messages without a space (check group)
*clarify options value help in maintainer
*changed the group plugin to simple dropdown
*group behaviour still not completely correct when changing groups
*moved audio file setting to notify
(will move the attention getter there sooner or later)
*callback functions for options can return false to indicate, that the new value should not be saved
->bug in settings widget: see issue
*found the problem with the setting - reset - issue closed