Squashed commit of the following:

commit 7ea1ab1cee18db6569a5ca18c8ce3977e40f23cf
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 20:51:25 2014 +0000

    Upgrade to ruby-install 0.4.0 + refactor.

    * Bump to 0.4.0
    * Use new --rubies-dir option, fixes #3  partial version string issues.
    * Add some extra tests for partial version strings.
    * Switch to using Serverspec instead of bats.

commit 8a230e70aaeb97a8477304264c3671e6f2093960
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 16:49:19 2014 +0000

    Adding inital unit test & fixing bunch of Rubocops fails

commit ca9b46ed4a765dd70071e7dcba6d353b382601a5
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 16:02:53 2014 +0000

    Adding Rakefile for running tests.

commit 8b84a2da568d7c023562c8a758b4e7db486e8d1d
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 16:02:40 2014 +0000

    Adding utf-8 encoding comment.

commit 21d234abdf82ae3d670491098eea027c82515d7f
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 13:18:17 2014 +0000

    Adding new OSs to metadata.

commit 9d7f7f37a344fcd5f9fe981a92f41b5b614d43c3
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 13:09:19 2014 +0000

    Adding new OSs to test-kitchen inc. Amazon Linux

commit fcda8cb1b832b6d7138d7880057a9c396be2b046
Author: Ross Timson <ross@rosstimson.com>
Date:   Sat Feb 15 13:04:38 2014 +0000

    Bumping gems and adding some to change test suite.
Make changelog compatible with Stove.
Version bump to 0.1.3
Publish 0.1.3 Changelog
Version bump to 1.0.0
Publish 1.0.0 Changelog
Version bump to 1.0.1 (for development)
Still getting used to using Stove.
Update default ruby_install version to 0.4.1
Workaround for a broken redirect on latest chef

https://tickets.opscode.com/browse/CHEF-5010?focusedCommentId=48183&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-48183
Prevent reinstall of ruby on install action
Merge pull request #6 from brainopia/prevent_reinstall

Prevent reinstall on :install action
Removing the auto usage of older Ruby.

Chef ecosystem seems fine with latest Ruby versions now so there is no
need to stick with using 1.9.3
Bump gems
Test-Kitchen should use latest stable Debian.
This seems to have sneaked in, should never have been committed.
Adding test for ruby-install version bump.
Should build/test latest Rubies.
Fixing Debian version for test-kitchen
Fixing ownership of ruby-install binary in Debian