Replaced SQL sprintf's with data bindings to allow use with Postgresql PDO backend.
Merge pull request #30 from KodoArkivo/develop

Replaced SQL sprintf's with postgres friendly data bindings.
Merge branch 'master' of git://github.com/F21/oauth2-server-php into F21-master
Merge branch 'develop' of github.com:bshaffer/oauth2-server-php into develop
addresses #26 - fixes name of ResponseType_AuthorizationCodeInterface
addresses #26 - PSR2 standards fixes
addresses #26 - adding newlines to the end of every file
Merge branch 'master' of git://github.com/F21/oauth2-server-php into F21-master
resolves php fatal error - interface was extending the wrong class
Merge branch 'master' of git://github.com/F21/oauth2-server-php into F21-master
merges PR, resolves conflicts, and resolves some formatting issues