Grunt file: chrome task fix
HabitRPG: low hp notification fix
Initial browser action support

- character stats
- initial structure for site watcher infos
- ugly popup :)
Sitewatcher score computing bug fix
Browser action icon change moved to the app.js
Browser action style
Browser action features

- Timeline which show the remaining time
  until the productivity state will send
- This line also show the productivity state whit color
The browser action icon show the current page type
Browser action site watcher state control button works
Dead code removed
Proper focus change handling
Merge branch 'dev'