Added new relic support for rabbitmq and postgresql;
Integrate newrelic with Douglas' changes;
Delete unneeded cookbooks;
Fix barbican worker db password.
Bumped the authorized-keys cookbook version; Added explicit python dependency to the barbican-postgresql cookbook;
Merge pull request #12 from jfwood/master

Integrate newrelic with Douglas' changes
Remove TODOs for databag values.
Merge upstream changes.
Merge pull request #13 from dmend/fix-worker-recipe

Fix barbican worker db password.