Add rubocop configuration.
Fix newlines and trailing whitespace at end of files.
Prefer single quotes.
Remove linelength override.

We'll deal with that via the .rubocop.yml file
Align arrays over multiple lines.
Remove redundant braces around hash parameters.
Remove extra blank line.
Use ruby 1.9-style hash syntax.
Use two spaces for array indentation, and close the brace at the same indentation as it is opened.
remove hash indentation override.
Use preferred %w array delimiter, and fix a few indentation problems that this throws up.
Remove override - not being used.
Preferred syntax for a list of words.

Mind you, could possibly work with an array of numbers.
Remove the rubocop todo file.