Wasn't processing the out_dir argument properly or passing any base arguments to Job

Proper interaction with the exporter now using the new format

JSON validation of src files by a schema

Fix typos

Start processing asset jobs from a src file

Start doing a src file asset based export

Working sending base64 over the json channel to load a MovieClip source in the Exporter.fla

Sending messages properly back and forth using the new driver architecture, and a proper message queue+program completion

Work on splitting up the driver into multiple files (we can ignore the .pyc files this produces)