A few changes in response to recent comments: * Andreas's request for ceiling and rank-order functions: There's now a "ceil" function in genr; a rank-order function will follow.
* Sven: spurious error message on supplying a null list as the target of a "foreach" loop. Fixed. * Sven: variables disappearing after calling a user-defined function that takes a list as an argument. I have fixed one problem in this area. I think that what I fixed was the main -- and perhaps the only -- error, but I need to do some more analysis and testing to make sure. There's a new Windows snapshot in place. Allin.
