Add rubocop gem
Add rubocop basic rules
Add Robucop lint autofixes
Use single-quoted strings when you don't need string interpolation
Use leading dot position
Apply rubocop align rules
Apply rubocop curly braces style
Replace deprecated methods
Remove extra blank lines
Use Ruby 1.9 hash syntax style
Fix indentation
Reove redundant expressions
Remove semicolons to terminate expressions
Apply Rubocop spaces rules
Remove trailing commas, lines and whitespaces