AuthorizeNet/sdk-php — pull request #16 by texdc (2014-06-03 05:49:26+00:00)
Title: Update autoloading

Includes minor BC breaks.

- Bumps minimum `PHP` version to `5.3`
- Enhanced `Composer` autoloading
- Provides `SPL` autoloader to address #14
- Updates documentation

Hopefully, this will set the stage for proper namespacing.