[COOK-4264] - Add node[ark][package_dependencies] to allow tuning packages

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-4288] - Cleanup the Kitchen
Version bump to 0.5.0
Publish 0.5.0 Changelog
Version bump to 0.5.1 (for development)
Merge branch 'master' of github.com:opscode-cookbooks/ark

Conflicts:
	metadata.rb
	recipes/default.rb
remove cmake merge in upstream