Remove 'wait-for*' blocks

We expect the containers to be more resilient, so we eliminate
the need to enter polling loops to check their readiness.
Make rubocop happy
Merge pull request #107 from opdemand/carmstrong/remove_waits

Remove 'wait-for*' blocks
Add ChefSpec/RSpec skeletons and hook up to rake
Add test coverage calculation
Set default platform/version for Runner
Flesh out controller and default specs
Remove hacky check for gem removal/installation
Add ChefSpec matchers for docker
Flesh out builder spec
Add spec matchers, fix tests
Flesh out remaining specs