CC-1927: Remove PEAR DB

First pass through the model classes to remove use of $CC_DBC.
Web application is working.
There are still other parts of the app that use PEAR DB.

airtime_mvc/application/controllers/ApiController.php

@@ -342,7 +342,7 @@ class ApiController extends Zend_Controller_Action
             exit;
         }
 
-        PEAR::setErrorHandling(PEAR_ERROR_RETURN);
+        //PEAR::setErrorHandling(PEAR_ERROR_RETURN);
 
         $data = Application_Model_Schedule::GetScheduledPlaylists();
         echo json_encode($data, JSON_FORCE_OBJECT);