Use forked useragent module for Chromecast detection
Use forked useragent module for Chromecast detection

This is temporary until 3rd-Eden/useragent#99 is merged and released.

Change-Id: I94e2c3aac7c9a6bed4c3947f36468bb1a6e35ee0

indiereign/shaka-player,tvoli/shaka-player,TobbeEdgeware/shaka-player,Ross-cz/shaka-player,russitto/shaka-player,indiereign/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,TheModMaker/shaka-player,TheModMaker/shaka-player,brightcove/shaka-player,TobbeEdgeware/shaka-player,brightcove/shaka-player,shaka-project/shaka-player,TobbeEdgeware/shaka-player,indiereign/shaka-player,TheModMaker/shaka-player,russitto/shaka-player,vimond/shaka-player,tvoli/shaka-player,tvoli/shaka-player,Ross-cz/shaka-player,TheModMaker/shaka-player,vimond/shaka-player,Ross-cz/shaka-player,vimond/shaka-player,shaka-project/shaka-player,brightcove/shaka-player,russitto/shaka-player