Added monitoring for Orbited2

[Niklas B]

Added some monitoring to Orbited2:

http://bivald.github.com/orbited2/monitoring.html

It basically give you a JSON back, good for graphs (I use it for munin graphs)

{"memory-usage-percent": 3.11151106569254, "memory-info": {"vms": 105340928, "rss": 16711680}, "sockets": {"csp-sockets": 0}, "cpu-percent": 0.0}