skulpt/skulpt — pull request #240 by rixner (2014-06-06 03:49:15+00:00)
Title: Preserve cell variables across calls to yield.

In a generator function that has cell variables, ```$cell``` is a local variable. So, if the generator function yields, anything stored within ```$cell``` will be lost. This fixes that by keeping the cell variables in the generator object, so that they will be preserved across calls to yield.