Tow new handlers for execute cmd via mcollective and send statistic to graphite

Execute handler
Will automatically execute things triggered by alerts, for example restart a service or enable debug mode. By using the great tool mcollective the handler can execute tasks on other servers.

Graphite-notify
The graphite notify handler is quite simple and just send a 1 when an event occur and 0 when it’s resolved

For more info see 
http://imansson.wordpress.com/2012/11/26/why-sensu-is-a-monitoring-router-some-cool-handlers/