Fix the probability inversion, get rid of debug cruft.
More cleanup of cruft.
Fix problems related to unconditional adding of entries to the queues.
Note randsim.getNext() returns null, it case the P() is 0.
Cleanup Makefile, fix multiple calls of randsim resulting in multiple
calls to srandom()
Numerous pile of fixes... this is representative of what makes sense
given the assignment.