Add a function for word-aware text wrapping Potentially hugely inefficient because we iterate through the string character by character, but then splitting it first and iterating over words still needs to iterate over the string to know where to split.

Ruby is already installed on my openSUSE box.

/usr/bin/ruby (interpreter) provided by ruby2.1-2.1.2-7.23
/usr/bin/irb (repl) provided by ruby2.1-2.1.2-7.23