Rubocop: Reformatting rubocop call in Travis script
Rubocop: Fixing problems in the lib directory
Merge pull request #2820 from daviddavis/temp/20130827135827

Rubocop: Fixing problems in the lib directory
Rubocop: Moving rubocop to development gem group
Merge pull request #2824 from daviddavis/temp/20130827173241

Rubocop: Moving rubocop to development gem group