v2.4.rc6

• SUP-1608 fix mediaPlayFrom functionality
• Upgrade Flash Akamai HDCore lib from 2.11 to 3.1
• FEC-1063 retrieve playready license url from server
• Supporting player 2.1 for native KMS app - since plugin name was set hardcoded
• PLAT-1012 fix volume in chromeless silverlight player
• FEC-1059 Support VAST 2.0.1 video clicks tracking events