Gmetric sync to send metrics to ganglia.

Heavily based on https://github.com/ganglia/ganglia_contrib/tree/master/gmetric-python

To get help, just type ./gmetric.py -h

Sample config:

[statsite]
port = 8125
udp_port = 8125
log_level = INFO
flush_interval = 10
timer_eps = 0.01
stream_cmd = python /opt/statsite/sinks/gmetric.py --host=192.168.0.2 --spoof='foo.example.com:foo.example.com' --stdin