Merge remote-tracking branch 'remotes/origin/master' into MP1-4100_Rework_Refreshrate_for_multi_monitor
MP1-4100 : Use DX9Device DeviceName and not the one from MP current screen position.
MP1-4090 : Fix Thumbnail check without path (It will solve Trakt and third party plugins on '#selectedthumb' in skin.)
Cleanup code and fix leftover temp generated thumb files.
Merge remote-tracking branch 'remotes/upstream/MP1-4100_Rework_Refreshrate_for_multi_monitor' into 1.4.0Fork_SEB_New_Master
Merge remote-tracking branch 'remotes/upstream/master' into 1.4.0Fork_SEB_New_Master