Fix Serverspec tests
Gemfile: Use foodcritic and RuboCop fixed versions
Berksfile: Use ark stable version
Fix integration tests
metadata: use pessimistic operator for cookbook versions, fixes database version bug
Fix ChefSpec unit tests
Gemfile: Update to RuboCop 0.28.0
Unit Tests: Update to use ChefSpec::ServerRunner
Gemfile: update vagrant-wrapper to 2
TODO: add mysql cookbook update task