Add MongoDB service and Ruby 2.0.0 to CI config.
Add MongoDB service and Ruby 2.0.0 to CI config.

StatProSA/sp-validates_timeliness,spjsschl/validates_timeliness,appfolio/validates_timeliness,estum/validates_timeliness,kirkgraham/validates_timeliness,johncarney/validates_timeliness,munirent/validates_timeliness