support play from live DVR on iOS and Safari
Merge branch '2.19-21-Sep' into playFromDvriOS
#FEC-2031 #comment support live to DVR on mobile
#FEC-2010 #comment pass hls streamerType to chromeless flash
#FEC-2053 #time 1h #comment updated next / back icons
Merge branch '2.19-21-Sep' of https://github.com/kaltura/mwEmbed into 2.19-21-Sep
Merge pull request #1004 from kaltura/fec-2010

#FEC-2010 #comment pass hls streamerType to chromeless flash
don't set duration when playing native hls
fix exception if no kalturaPlayerMetadata exists
Merge pull request #999 from kaltura/playFromDvriOS

Play from dvri os
Bump version v2.19.rc5
#FEC-2079 #comment fix gui disabled in livestream
Merge pull request #1020 from kaltura/FEC-2079

#FEC-2079 #comment fix gui disabled in livestream
new HLS plugin from DP
#FEC-2078 #comment don't break on playmanifest errors
Merge pull request #1021 from kaltura/live_fixes

Live fixes
bump 2.19.rc6
Added support to hide "Off" button, and toggle caption visibility
Ignore li with "label" class
Disable button if they have disabled class on parent element