[Merge] lp:~mardy/webbrowser-app/refactoring into lp:webbrowser-app

[Alberto Mardegan]

Thanks Olivier for your review, I fixed the issues you found.

As for the tests, it's certainly something that we need to put in our backlog.
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https://code.launchpad.net/~mardy/webbrowser-app/refactoring/+merge/258074
Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:~mardy/webbrowser-app/refactoring into lp:webbrowser-app.