Added the peer and individual device auth token generation functions.
Implemented autocreate support (defaults to false) when sending text/image/audio messages.
Implemented support for the device status check.
Implemented support for URL-based configuration (in advance of the Heroku integration).
Upped the package version to 0.2.0.
Implemented JSON and binary message formats.
Added tests for the JSON/binary message formats, and the URL-based configuration.
Allowed test selection using command line arguments.
Updated to version 0.4.0.
Added all the code and tests to exercise the new User api.
Corrected a small bug in the check_for_errors function.
Cleaning up the merge

Conflicts:
	composer.json
	lib/Hipmob.php
Release 0.4.0: includes support for the user status bits.