Reorganize test data

Use fonts with just the glyphs P, A, N for speed.
Merge pull request #141 from rrthomas/fix-tests

Reorganize test data
Rewrite command-line interface

Use helmsman to automatically find the commands, which are now
standalone scripts, and generate a list of commands.

Use commander.js to parse the command lines and generate per-command
help. Owing to a number of bugs and limitations, we use a patched
version, sigh. Upstream has been contacted about fixing things.

Remove ArgumentParser.

Conflicts:
	metapolator
Merge pull request #148 from rrthomas/cli-overhaul

Rewrite command-line interface
Add partially-functioning ternJS support

See issue #140
Merge pull request #149 from rrthomas/ternjs-support

Add partially-functioning ternJS support