[Merge] lp:~bilalakhtar/update-manager/unity-launcher-progress into lp:update-manager

[Michael Vogt]

I merged this is in a slightly different way using the "UnitySupport" class in update-manager. This avoid the dependency on the aptdaemon change (as written in the aptdaemon one I would like to have it slightly more generic there).
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https://code.launchpad.net/~bilalakhtar/update-manager/unity-launcher-progress/+merge/63674
Your team Ubuntu Core Development Team is requested to review the proposed merge of lp:~bilalakhtar/update-manager/unity-launcher-progress into lp:update-manager.