Update changelog for v2.0.5
Update changelog for v2.0.5

Change-Id: I8e6ce4ec4643a62c400be4696a73c0b5751faeff

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