Corrected race conditions in parallelization code.

Used the wrong examples.  Better now!
Found typo in block data.

Left an extra space behind.  Oops!
Cleaned up test.

Moved things around to handle later test examples better.
Changed channels.

Tweaking channel definitions to more accurately describe what needs to
be passed into and out of the methods.
Added support for building maps and worlds.

Not sure if this will stay permanently.
Temporary scale bump until I add scale knobs.

Need to knob all the things, eventually.
Updated documentation with notes for next steps.

Wanted to record where I was before I stopped for a while...