Remove unused icon files form the cookbook
Fix rubocop warnings, bump copyright for Opscode to 2013.  Align attributes because people like pretty things.
Update to standard Opscode gitignore file
Add rubocop config.  This is the standard Opscode config used elsewhere
Add rubocop and foodcritic gems to the Gemfile.  Change source to https.
Merge pull request #189 from tas50/COOK-3579

Remove unused icon files form the cookbook
Merge pull request #191 from tas50/COOK-3577

[COOK-3577] Code cleanup resolving rubocop warnings