Change router commands to take router id
Change router commands to take router id

The fact that the commands to debug and manage a router take a tenant id
as argument has been a constant source of confusion. Fix it by making
them take a router id and look up the tenant id.

Change-Id: I7f05319eb854b1b9b4b99fd6e76c778866bcf87a

stackforge/akanda-rug,dreamhost/akanda-rug,markmcclain/astara,stackforge/akanda-rug,openstack/akanda-rug,openstack/akanda-rug