Detect database outages and try to wait until the db is available again. Closes #3.
Upgrade to Rails 4.
Bump version.
Update README

Add recommended configuration
Update to latest eventbus gem.
Add strong params for Rails4.
Re-gen under rails 4.
Merge branch 'master' of https://github.com/devincognito/EventBus
Fix environment variable name.

Renamed PROD_LEVEL to EVENTBUS_PROD_LEVEL.