Pillar kata: Roman/Arabic numeral converter

Set up instructions:

This will allow one to open IRB with methods available. These depend on the system including ruby. In terminal:

gem install bundler

bundle

irb -r ./app.rb 

Usage:

arabicize() will convert a roman numeral string into arabic numerals

romanize() will convert an int (arabic numeral) into roman numerals

Testing:

In terminal

Rspec