Start writing the to_javascript script.

It aims to be a quick-and-dirty translator to JS, but it doesn't do much
yet.
Start implementing the From_Patsolve converter.
Start writing From_Patsolve.
Implement another move.
Implement more moves.
Add more move types.
First complete solution.
Get rid of trailing space.
Made the output solution verifiable.
add the script.
Convert to Dist-Zilla.