Rename eDash packager to shaka packager.
Rename eDash packager to shaka packager.

The packager has been renamed, so this renames all references to it.

b/29164060

Change-Id: I33b28500c7a72a7f9021b440ad836e743f636be2

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