Several control flow things:
    - Changed blender extensions in Process_Parameters
    - Changed **kwargs behavior to be more sane for command override
    - Removed floor in camera; not worth it
    - Turned off default printing in Commandlineparser.

To keep in mind:
    - Might want to rework printing diagnostics, and making that separate module.
    - Might want to consider how independent to make each python unit; vary by module? or what?
    - Could rework the control flow for Post_Process; it's not very good, and duplicates code, but it works, in an automated fashion, so maybe not worth it to achieve essentially the same thing that can be done as is. Really don't like code duplication.