Update CHANGELOG.

CHANGELOG

@@ -1,3 +1,8 @@
+v0.6.3 (201x-xx-xx)
+  * New commands available in the Redis v2.2 profile (dev):
+      - Strings: SETRANGE, GETRANGE, SETBIT, GETBIT
+      - Lists  : BRPOPLPUSH
+
 v0.6.2 (2010-11-28)
   * Minor internal improvements and clean ups.