Added PHP 5.6 and HHVM to travis.yml
update branch alias to 2.3.x-dev
Bump phpunit to 4.2

Maybe Travis will be happier
Merge pull request #103 from recurly/bump-phpunit

Bump phpunit to 4.2
Merge pull request #101 from Nyholm/patch-1

Added PHP 5.6 and HHVM to travis.yml
Merge pull request #102 from caxy/branch-alias

update branch alias to 2.3.x-dev