Release 0.3.0-rc1 of the puppetlabs-mongodb module
Merge pull request #59 from hogepodge/release_candidate_0.3

Release 0.3.0-rc1 of the puppetlabs-mongodb module
Add rpec-system tests.

This commit adds very basic rspec-system tests, covering just
the package, config file, and service. Further tests need to
be written but this is just a framework for us to write more
on.
Merge pull request #60 from apenney/spec

Add rpec-system tests.
Fix up travis.