[Merge] lp:~rpadovani/webbrowser-app/newTabRefactoring into lp:webbrowser-app

[Riccardo Padovani]

Okay, I changed approach, what do you think? It doesn't hide anymore sections header. I think I removed all unused code, but could be there is some useless code.
-- 
https://code.launchpad.net/~rpadovani/webbrowser-app/newTabRefactoring/+merge/247498
Your team Ubuntu Phablet Team is subscribed to branch lp:webbrowser-app.