[builtins] PlayMedia() should use a sort order appropriate for the items. fixes #15136
fix resume behavior for plugins with stack  

Resume behavior for local files (.-partN) are not corrupted.
http://forum.xbmc.org/showthread.php?tid=192690
Merge pull request #4616 from kit500/master

fix resume behavior for plugins with stack
Merge pull request #4601 from jmarshallnz/play_media_sort_order

[builtins] PlayMedia() should use a sort order appropriate for the items