v2.50.rc1

• Force pause in changeMedia CC
• Fixing isInSequence var after adError in CC
• Receiver performance improvements
• Unload Chromecast media player immediately on changeMedia
• Show splash screen on IDLE or change media on Chromecast
• Send raw kaltura plugin data to chrome cast
• Add withCredentials flag to hlsjs to support signed cookies
• Reducing the time takes to refresh the player's layout after resize
• SUP-9408 - Player crushes when the closed caption layout is set to 'Below the video'
• FEC-5992 - Intermitten bumper postroll with doubleClick preroll