Point at a a new feature.

NEWS

@@ -4,6 +4,7 @@
   In 1.5 trying to appease pylint broke the Mercurial hook.
   Added credits for contributors in hacking.txt.
   Fix the aging out of connections when we hit a resource limit.
+  Add option for external filtering.
 
 1.5 @ 2012-10-03
   Mercurial support.

hacking.txt

@@ -57,7 +57,7 @@ Peter Scott <pjscott@iastate.edu> contributed the original greenlet
 support.
 
 Laurent Bachelier <laurent@bachelier.name> fixed the Makefile so it 
-wouldn't break stuff.
+wouldn't break stuff and added the external filtering option.
 
 dak180 (name withheld by request) wrote the OS X launchd plist.