rebcabin/LeibsTown — pull request #2 by rebcabin (2012-12-10 21:02:45+00:00)
Title: all ClearAll[square] so notebook is idempotent

Also includes fix to push so that it's a LIST of rules. We want to be hardcore about this. Rules are always LISTs of rules, even if only singletons (MMA allows a single rule not in a list -- we don't want that shortcut yet).