Job Form uses deprecated api functions

The Job Form uses civicrm_api_include and civicrm_api_get_function_name calls, which are deprecated.

This patch replaces these calls with a call to _civicrm_api_resolve.

This also has the beneficial effect of allowing custom api calls to be scheduled just like other jobs:

• create <custom_php>/api/Job/myAction.php
• create a new job in the scheduler with parameters 'civicrm_api3", 'Job', 'my_action'

Patch for: CRM/Admin/Form/Job.php