Improve some debugging information to find the weird data problem.

Turns out list.pop() removes the *last* item, not the first one.  Oops.  It
all works great for queues of only one item... :)

server.py

@@ -32,11 +32,10 @@ def main():
         handlers = filter(lambda s: s.ok, handlers)
         for s in handlers:
             s.pre_select(r,w,x)
-        log('\n')
         log('Waiting: %d[%d,%d,%d]...\n' 
             % (len(handlers), len(r), len(w), len(x)))
         (r,w,x) = select.select(r,w,x)
-        log('r=%r w=%r x=%r\n' % (r,w,x))
+        #log('r=%r w=%r x=%r\n' % (r,w,x))
         ready = set(r) | set(w) | set(x)
         for s in handlers:
             if s.socks & ready: