[Merge] lp:~binli/qtcreator-plugin-ubuntu/lp1409596 into lp:ubuntu/qtcreator-plugin-ubuntu

[Bin Li]

> I added two inline comments, when they are fixed the change is good to go
Done, and BTW, what's the meaning of DESC? Should we use DEVICE_FILE? Thanks for your quick review. :)
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https://code.launchpad.net/~binli/qtcreator-plugin-ubuntu/lp1409596/+merge/246089
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