[Merge] lp:~ahayzen/qtubuntu-media/fix-1531296-random-mode-repeat-for-now into lp:qtubuntu-media/stable

[Jim Hodapp]

Review: Approve code

Looks good as a work around for making sure music-app doesn't have a regression from the way it works when it implemented playlists. This is a temporary fix until we decide how to solve the lack of this mode being possible with QtMultimedia's API.
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https://code.launchpad.net/~ahayzen/qtubuntu-media/fix-1531296-random-mode-repeat-for-now/+merge/281698
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