+0.51 Thu Jul 21 11:08:58 PDT 2011
+ * memcached_callback_set() now takes its data argument as const
+ * Update to tests.
+ * Fix in parser for port number.
+
0.50 Mon Jun 20 10:36:57 PDT 2011
* Updates to C++ interface
* Custom free allocators need to now check for value before calling free.