hooks implementation
Updated code to use new hooks
removed send_message from backbone interface
Using hook for backbone startup
improved hello text a bit
Merge branch 'master' into hooks

Conflicts:
	bender/_bender.py
	bender/backbones/console.py
with hooks, you don't need to have a class :wink:
functions implementing hooks must use correct argument names
Merge branch 'master' into hooks
ping to test travis on branch
Merge pull request #6 from bender-bot/hooks

Hooks