Changelog

1.0 (July 19th, 2012)

Initial release. [JI/MS]

1.1 (August 21st, 2012)

Added /get_key functionality to translate a legacy Mediaburst username and password into a new Clockwork API key. [JI]
Deprecated checkCredit() and replaced with checkBalance() [JI]

1.2 (September 7th, 2012)

Added various new Wordpress classes, including the Clockwork_Plugin class for writing plugins based on Clockwork. [JI]

1.3 (September 18th, 2012)

Added is_valid_msisdn() method. [JI]

1.3.1 (November 13th, 2012)

Updated is_valid_msisdn() method to handle 9-digit phone numbers, e.g. Norway. [JI]

1.3.2 (December 18th, 2015)

Switched license to MIT rather than ISC as people haven't heard of ISC and they're very similar
Added account type to balance checks.