Closes #1146: add "unsigned" as a cython builtin.
Closes #1146: add "unsigned" as a cython builtin.

sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments,sol/pygments