Changed default instance type from ZYNC20 to ZYNC16.
Initial support for get_job_subtypes API call as well as the subtype parameter for Jobs.
Removed scene_info debugging line.
Added optional validate argument to workaround issue with out-of-date Python libraries in Maya 2013.
New ArnoldJob class. Reorganization and documentation of all the main API classes. New launcher scripts to demonstrate how one can use the API to launch each type of supported job.