[Merge] lp:~mir-team/qtubuntu/port-to-mirclient into lp:qtubuntu

[Albert Astals Cid]

Compiled manually and ran some manual tests and could not find anything wrong, looks code sane too (but will wait for giving my approval until the small comments i made above are resolved)
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https://code.launchpad.net/~mir-team/qtubuntu/port-to-mirclient/+merge/245164
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