Add NEWS entry.

NEWS

@@ -34,6 +34,11 @@
     dulwich.porcelain.list_tags has been renamed to tag_list.
     (Jelmer Vernooij)
 
+ API CHANGES
+
+  * Restore support for Python 2.6. (Jelmer Vernooij, Gary van der Merwe)
+
+
 0.9.7	2014-06-08
 
  BUG FIXES