Bump version to 0.13-1~wheezy

Signed-off-by: Nikos Skalkotos <skalkoto@grnet.gr>

debian/changelog

+snf-image (0.13-1~wheezy) wheezy; urgency=low
+
+  * New upstream version
+
+ -- Nikos Skalkotos <skalkoto@grnet.gr>  Thu, 06 Feb 2014 12:58:37 +0200
+
 snf-image (0.12.1-1~wheezy) wheezy; urgency=low
 
   * New upstream version
@@ -264,3 +270,4 @@ snf-image-host (0.1-1) UNRELEASED; urgency=low
 
 
 
+