Use version.rb instead of VERSION
Update travis config
Remove jeweler

Ewwwww.
Convert README to markdown and update
Update license copyright notice
Add a Gemfile
Switch to manually maintained gemspec
Add config file for simplecov
Tweak the benchmark to be easier to read
Remove notifier checks for key type

Let's just say that they must be strings and not
waste a bunch of CPU time.
Begin converting tests to use minitest
Begin updating CHANGELOG