Add replacement init file for gmetad under Debian

The standard gmetad init file in Debian (Squeeze and Wheezy) has no
'status' function. This prevents ganglia server from being managed by
pacemaker.
Add option to not start ganglia-server automatically

Useful when ganglia-server is running under a cluster manager
Create definitions for ganglia resources

Resources:
  * Metric
  * Module
  * Collection Group
Add sample config to README

Sample config recreates default configuration prior to commit
f8a6f15f43fde2a1819f4ad25f64bbfbb708622d
Add configuration options to ganglia::webserver