When the ticket #60 was solved, the mod could no longer work.

The stacktrace seems more than explicit about the reason:
http://pastebin.com/kRAAkxZ3

I may have found the error myself:

+import scala.actors.threadpool.Arrays;

This appears at line 8 of the commit resolving issue 60, in com/mraof/minestuck/editmode/ServerEditHandler.java
Looks like this class doesn't exists. Never coded for forge, though, so I can't be sure.