Set default vod fileindex to largest file
Fix for NTFY_VIDEO_BUFFERING
Fix
Fix pause button being disabled after seek
Reset timeoffset
Remove old-style downloadstates that we can't convert
Merge pull request #510 from egbertbouman/default_fileindex

By default, play the largest videofile + fix buffering event
some cleanup
cleanup VideoFrame
Merge pull request #509 from LipuFei/video-fix

Fix EmbeddedPlayer pause problem
Merge pull request #511 from egbertbouman/bad_pickle_fix

Remove old-style downloadstates that we can't convert