[markwatched] queue up mark watched jobs and process them without locking the main thread
[markwatched] handle mark watched via mark watched job queue
Merge pull request #4923 from mkortstiege/markwatched

handle mark watched via job queue
dvdplayer: remove log spam after 7ab52a00ac516ecb784f86a190fd44c523359cf7
[darwin] Add model detection for OS X
Merge pull request #5317 from Karlson2k/osx_model_id_01

[darwin] Add model detection for OS X