Docs for lists.
Merge pull request #9 from zeckalpha/master

Recopy css if it has been modified.
Tweak doc generation script a bit.
hack unused-value warning on POP() to pass build
Merge pull request #10 from gaodayue/fixbuild

hack unused-value warning on POP() to pass build
Add DROP() macro for popping and discarding the result.

Avoids unused-value warnings where the result of POP() isn’t used.
Allow passing a suite to make test.
Handle invalid string literals.
Define error type enum.
Move IO into a separate module.
Work on class docs a bit.
Move clock into IO.
Handle extra and missing arguments to fn.call.
Add FFI support for returning strings and null.
Add a concat method to Lists