Standardized our varable usage in shell scripts

Hate opening a file with mixed upper and lowercase variables.
Also, wasn't fond of the 2 space vs 4 space with noexpandtab.
I wanted to move us to a standard, we can clean it with whichever
standard we like.  *e.g. 2 vs 4 spaces, ${} vs $ etc...
Restart cinder/keystone/nova services when config changes.
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
Merge pull request #203 from blueboxgroup/blueboxgroup/test-var-cleanup

Standardized our varable usage in shell scripts
Merge pull request #217 from blueboxgroup/restart-services

Restart cinder/keystone/nova services when config changes.
Update default testenv net and image uuids.