Change from requiring test/unit to minitest/autorun. Add dev. dependency on minitest to gemspec.
Add Gemfile for use with bundler. Simplify Rakefile and add test_online, test_offline tasks. Update README re: unit tests.
Committed Gemfile.lock to repo to avoid minitest errors caused by use of old version.
Fix indentation.
Add note about possibly needed to do 'bundle exec rake test' instead of 'rake test'.
Fix readme. Forgot it's not markdown.
Merge pull request #4 from keithrbennett/convert-to-minitest

Change from requiring test/unit to minitest/autorun.