I have put out an initial test release of MLLE, an executable level editor that I have been developing as an alternative to JCS. You can find a download link, the list of still-unimplemented features, and what kind of errors I would like people to watch out for at this forum post. Please report errors and other feedback here or in the linked thread.This was posted on RabbitJournal on October 18th 2011. You can post, too!
Eat your lima beans, Johnny.