Design of chapters on the home page
design for player menu. this should replace the enrich screen
fix fluid container
Add button to toggle personalization/user tracking
remove debugging stuff
Split player panel into
- player menu: list chapters and playlist
- enrich: information about the chapter
layout of player controls
Merge branch 'master' of github.com:TizianoPerrucci/tkk-demo into design_update

Conflicts:
	client/partials/controllers/play.html
	client/partials/directives/chapter-headline.html
grey background
improve contrast icons and headers
Enables player menu