Merge pull request #4637 from Voyager1/fix-trac15163-bis

[fix] make sure video playlist is empty and current when starting video disc
Merge pull request #4623 from FernetMenta/background

Revert "[WIN32] changed: set background mode when minimized. prevents sc...
version bump to 13.0 final
Merge remote-tracking branch 'upstream/Gotham'