[Merge] lp:~bzoltan/webbrowser-app/UCAbstractButton into lp:webbrowser-app

[Olivier Tilloy]

Review: Needs Fixing

That looks better (although I really wonder why specifying "UCAbstractButton" would make unity8 crash, and that should be investigated and understood before proceeding).

Please revert the removal of the blank line after the imports.
-- 
https://code.launchpad.net/~bzoltan/webbrowser-app/UCAbstractButton/+merge/270369
Your team Ubuntu Phablet Team is subscribed to branch lp:webbrowser-app.