[Merge] lp:~artmello/gallery-app/gallery-app-start_on_event into lp:gallery-app

[Gustavo Pichorim Boiko]

Review: Needs Fixing

It seems gallery is not accepting URIs passed via command line args at startup. Can you please fix this?
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https://code.launchpad.net/~artmello/gallery-app/gallery-app-start_on_event/+merge/218977
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