Nailgun console scripts for launch rpc, keepalive and wsgi.

Run rpc, keepalive and wsgi in separated processes.

Run RPC:
  /opt/nailgun/bin/nailgun_rpc

Run Keepalive:
  /opt/nailgun/bin/nailgun_keepalive

Run WSGI application:
  uwsgi -http 127.0.0.1:8001 --wsgi-file /opt/nailgun/bin/nailgun_wsgi