update CHANGES

CHANGES

+0.9.3
+-----
+
+All known bugs in the queue module were fixed and it is made 2.4-compatible.
+LifoQueue and PriorityQueue are implemented as well.
+
+gevent.queue.Queue has a few differences from the standard Queue:
+ - Queue(0) means queue of size 0, in other words a channel, not a queue of infinite size.
+   Having size of 0 means that put() methods always block until the item is delivered.
+ - Items that are awaiting a free slot participate in the order imposed by the queue.
+
+gevent.queue will deprecate coros.Queue and coros.Channel.
+
+Timeout now raises itself by default. TimeoutError is gone.
+This makes it easy to check that a timeout catched is actually the one needed:
+
+timeout = Timeout(1)
+try:
+    ...
+except Timeout, t:
+    if timeout is not t:
+        raise # this is timeout set up by someone else and not us; we do not want to catch it
+
+select() function had a bug of this kind that was fixed.
+
+spawn and spawn_later were further optimized and spawning now takes 5-9 microseconds instead of 14.
+
 0.9.2
 -----
 
 GreenSocket was simplified and GreenSSL was almost completely rewritten. This fixes
 SSL bug reported on eventletdev by Cesar Alaniz as well as failures in test_socket_ssl.py
-from Python's standard library. makeGreenFile is gone, makefile which returns _fileobject
+from Python's standard library. makeGreenFile is gone, makefile (which returns _fileobject)
 is available on both GreenSocket and GreenSSL. socket.py still a work in progress.
 
 New class core.active_event is added that takes advantage of libevent's event_active function.