Add example metrics handler

This is a sample framework for a metrics handler that can receive
metrics messages forwarded from Rsyslog and send them to 1 or more
destinations, such as Graphite.
Merge pull request #331 from sosiouxme/enterprise-2.1

Add example metrics handler
Apply sysctl settings after configuring
Support setting node_profile name
Restart Services and run oo-diagnostics after install
add post_deploy action
move run_diagnostics action to post_deploy
<oo-install>Add restart_services to configure steps for a host
<oo-install> add post_deploy step for broker/nodes
Update openshift.sh for installer testing