MP1-4525 : Fix MP freeze when playing video from my pictures while video is already running from TV / my videos etc.
MP1-4526 : Fix shuffle mode for recursive slide-show when using date view.
MP1-4462 : Missing_content_protection_in_My_Pictures_if_the_date_view_is_selected (port code from my video)
Merge branch 'master' of ssh://github.com/MediaPortal/MediaPortal-1 into MP1-4462-BUG-Missing_content_protection_in_My_Pictures_if_the_date_view_is_selected
MP1-4462 : rework PIN - Password
MP1-4525 : Don't continue slideshow if we comes from another GUI Windows to GUIPictures Init.
MP1-4526 : Catch possible exception when stopping GUI SlideShow it will avoid to have MP running into an infinite loop.
MP1-4526 : Fix Shuffle when reach end of slide list.
Merge remote-tracking branch 'remotes/origin/MP1-4462-BUG-Missing_content_protection_in_My_Pictures_if_the_date_view_is_selected'
Merge remote-tracking branch 'remotes/origin/MP1-4525-BUG-Fix_MP_freeze_while_starting_video_from_my_pictures'
Merge remote-tracking branch 'remotes/origin/MP1-4526-BUG-Fix_shuffle_picture_when_using_date_view_and_recursive_mode'

Conflicts:
	mediaportal/WindowPlugins/GUIPictures/GUIPictures.cs