Tinderbox Tree Status Message Builder

While it's dumb to edit a textarea to close the tree, it's worse that the rules for doing this are in a comment that you must keep intact. Somebody can just come in and blow it away, then it's lost forever. It's also easy to accidentally make "The tree is OPEN" happen. And that's silly. README (with todos).

Tree Status:

Text To Follow

"bug #" is autolinked. A space will be appended and prepended if needed.