Change the order of whale, ryu, and janus.
Whale is started, then janus and ryu are started.
In the ryu starting application list, change from rest_savi to rest_discovery.
Changing Janus default ports back to 8081 for public, 8091 for admin
    - Use public port for OS_JANUS_URL
Merge remote-tracking branch 'origin/silver' into silver

Conflicts:
	stack.sh