Bump version to 1.17.12

debian/changelog

@@ -1,3 +1,9 @@
+dpkg (1.17.12) UNRELEASED; urgency=low
+
+  * 
+
+ -- Guillem Jover <guillem@debian.org>  Sun, 10 Aug 2014 03:01:45 +0200
+
 dpkg (1.17.11) unstable; urgency=low
 
   [ Guillem Jover ]