Add 2.1.3
Bump version
Merge pull request #5 from matthieua/master

Add Ruby 2.1.3
Update wercker-box.yml

- Add `1.9.3-p547`
- Add `2.0.0-p576`
- Remove `2.0.0-p353`
- Remove `2.1.0`
- Set `2.0.0-p576` as default
Update README.md
Add Ruby 2.1.4

New version came out with a security fix: https://www.ruby-lang.org/en/news/2014/10/27/ruby-2-1-4-released/
Merge pull request #6 from nanoxd/patch-1

Add Ruby 2.1.4
Add 2.2.0 to README
Add 2.2.0 to wercker-box.yml
add support for ruby 2.1.5, 2.0.0-p598, 1.9.3-p551
Merge pull request #8 from kamui/new-rubies

Add support for ruby 2.1.5, 2.0.0-p598, 1.9.3-p551
Release 2.3.0

- Added `ruby-1.9.3-p551`
- Added `ruby-2.0.0-p598`
- Added `ruby-2.1.5`
- Removed `ruby-1.9.3-p545`
- Removed `ruby-2.0.0-p481`
- Removed `ruby-2.1.2`
- Set `ruby-2.1.5` as default
Merge remote-tracking branch 'upstream/master'

Conflicts:
	wercker-box.yml