Stemming out of: #216

This is a really complicated one.

$ bundle exec rake
Running RuboCop...
.rubocop.yml: Style/AccessorMethodName has the wrong namespace - should be Naming
.rubocop.yml: Style/AlignArray has the wrong namespace - should be Layout
.rubocop.yml: Style/PredicateName has the wrong namespace - should be Naming
/home/nruest/.rubocop.yml: Style/AccessModifierIndentation has the wrong namespace - should be Layout
/home/nruest/.rubocop.yml: Style/FileName has the wrong namespace - should be Naming
/home/nruest/.rubocop.yml: Style/SpaceInsideHashLiteralBraces has the wrong namespace - should be Layout
Error: The `Style/TrailingCommaInLiteral` cop no longer exists. Please use `Style/TrailingCommaInArrayLiteral` and/or `Style/TrailingCommaInHashLiteral` instead.
(obsolete configuration found in /home/nruest/.rubocop.yml, please update it)
RuboCop failed!

Then all the changes from updated Rubocop.

FUN.