[Merge] lp:camera-app/staging into lp:camera-app

[Florian Boucault]

The proposal to merge lp:camera-app/staging into lp:camera-app has been updated.

Commit Message changed to:

New release:
Fix viewfinder not showing on desktop:
- support non numerical camera device IDs and more than 2 cameras. 
- support not having an orientation sensor available.
- more robust ending of photo capturing process.
Stop depending on transitional packages. (LP: 1583079)

For more details, see:
https://code.launchpad.net/~phablet-team/camera-app/staging/+merge/303140
-- 
Your team Ubuntu Phablet Team is requested to review the proposed merge of lp:camera-app/staging into lp:camera-app.