Overcoming TextMarks' limitation of not supporting customized responses to incoming SUB/UNSUB requests by sending a standalone message to the subscriber.

Limitted return value of TextMarks incoming requests to the standard request callback URL only, since TextMarks don't support it for the subscribing callback URL.

Added support for incoming API requests. Applied the patch http://drupal.org/files/issues/textmarks-receive.patch and also added support for debug mode.

Initial commit of Textmarks module. This module eases integration with the Textmarks API to send SMS text messages to mobile phones from Drupal.