8faf57a446
Also, realized that there was potential for a runaway task if two threads called schedule() and cancel() simultaneously and the planets are aligned. Cancel any de-fanged task in case it is a runaway. git-svn-id: https://samskivert.googlecode.com/svn/trunk@1570 6335cc39-0255-0410-8fd6-9bcaacd3b74c