totten/civix — pull request #6 by michaelmcandrew (2012-10-29 14:50:20+00:00)
Title: Civix was not capitalising filenames in the extension filespace - the API likes capitalised file names.

following on from http://forum.civicrm.org/index.php/topic,26554.0.html, I realised that the sms api wasn't working because it was expecting Contact/Sms.php, not contact/sms.php (which is what get created if you forget to capitalise your API entities and actions.