install sensu client cert
sensu config looks for ssl certs for rabbitmq
only write sensu cert if it's in the env
lock in version for sensu package and plugin gem
can't specify latest sensu gem and version at the same time
sensu config only reference certs if they are defined
use is defined in sensu config jinja
fixup, write sensu cert using template
Merge pull request #220 from blueboxgroup/secure-sensu

Secure sensu