Added more notes

Author: mkoppanen

ChangeLog

@@ -8,6 +8,7 @@ Version 2.2.0b1
 	* Fixes GH #54: Fixed UDP server adding with newer libmemcached
 	* Fixed PHP bug #65334: (Segfault if uncompress value failed)
 	* Fixes GH #14: get with cas token fails to fetch all results
+	* Fixes GH #68: memcached 2.1.0 requires libmemcached 1.0.10
 	* Fixes GH #69: compiling on CentOS 6.4 with libmemcached 1.0.17
 	* Merged PR #91: memcached.sess_lock_wait and memcached.sess_lock_max_wait
 	*  Added session handler settings: