* Reworked interfacing to drop the versioning in the class name.
* Refactored / cleaned up existing code.
* Stuck with support for PHP 5.3+ since PHP 5.x still seems to hold majority.
* Abstracted request logic to another class for mocking.
* Added test suite and hit full code coverage.
* Updated readme, included migration guide and the full gamut of examples.
* Wired up travis-ci and coveralls for testing and coverage.
