3.0.0

Key Changes:
- Removed support for PHP 5.5
- Removed username/password authentication - you must use an API key
- Removed 'original' format support (please use 'php' instead)
+ Added additional API methods (see documentation)
+ Added XML response support (parsed by simplexml)
* Deprecated old (<= 2.1) methods in favour of getModule()->getMethod() separation