Make use of season-poster files if "use folder.jpg" is set, while viewing "* All seasons", "RecentlyAddedEpisodes" or with "Flatten Always"
Merge pull request #367 from mdklapwijk/patch-season-poster

Make use of season-poster files if "use folder.jpg" is set, while viewin...
Patch to replace non-existing fallback icon DefaultVideoBigPoster.png with DefaultVideo.png. This sets all poster icons to use scale instead of stretch where it was not already implemented.
Use videos background as fallback instead of videocover
Revert "Patch to replace non-existing fallback icon DefaultVideoBigPoster.png with DefaultVideo.png. This sets all poster icons to use scale instead of stretch where it was not already implemented."

This reverts commit 3bda548f3ce7491b8c79a75ad0eccd9a19e36cda.
Different approach for missing DefaultVideoBigPoster.png
Wallview fixes
Fine tune Dutch translation
Fix missing bottom scrollbar
Fix for choosing Live cases in musicviz
more scrollbar fixes
fix for lowlistmusic
label fix for positionselector
playlist widget fix
hide empty playlist slots
Fix label2 in addonbrowser
Add role and job description
load thumb in background thread
Fixed unmatched parentheses
Fix outline/plot bug