Add Upstart session job
Add Upstart session job

This gets us the cgmanager-ready event in sessions as well as tells the session init about cgmanager's address.
lxc/cgmanager,hustcat/cgmanager,lxc/cgmanager,hallyn/cgmanager-pkg-ubuntu,hallyn/cgmanager-pkg-ubuntu,hallyn/cgmanager,hallyn/cgmanager,hustcat/cgmanager,udeved/cgmanager,udeved/cgmanager