misc: fixed vmcelery upsart to handle instances

miscellaneous/vmcelery.conf

 description	"IK Cloud Django Development Server"
 
-start on runlevel [2345]
-stop on runlevel [!2345]
-
 respawn
 respawn limit 30 30
 setuid cloud
 setgid libvirtd
 
+instance $NAME
 
 script
     cd /home/cloud/vmdriver
     . /home/cloud/.virtualenvs/vmdriver/local/bin/activate
     . /home/cloud/.virtualenvs/vmdriver/local/bin/postactivate
-    HOSTNAME=$(hostname -s)
-    exec celery -A vmcelery worker --loglevel=info -n ${HOSTNAME}.vmdriver
+    exec celery -A vmcelery worker --loglevel=info -n $NAME
 end script