Merge branch 'release/3.1.1' into develop
Merge branch 'refs/heads/master' into develop
Went back to old title
Removed section about built in PDO drivers
Removed some tests that randomly fail
Typo in docblock
Added TravisCI's new asset caching http://about.travis-ci.org/blog/2013-12-05-speed-up-your-builds-cache-your-dependencies/
Removed unnecessary line
Merge pull request #122 from andersonamuller/patch-1

Typo in docblock
Added CONTRIBUTING.md
Merge pull request #123 from alexbilbie/develop

Added CONTRIBUTING.md
Update CONTRIBUTING.md
Travis will now test against HHVM
Update README.md
Update .travis.yml
Update composer.json
Update composer.json
Ninja 5.6 test
Support Authorization header passed as ENV var
Some hosts (at this point I only know of Fortrabbit) require Authorization headers to be passed as an environment variable, which PHP will then shove into . See more: http://fortrabbit.com/docs/essentials/quirks-and-constraints\#authorization-header
Updated changelog.