Bump version to 0.15~rc1-1~wheezy

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

debian/changelog

+snf-image (0.15~rc1-1~wheezy) wheezy; urgency=low
+
+  * New upstream version
+
+ -- Nikos Skalkotos <skalkoto@grnet.gr>  Tue, 13 May 2014 16:46:42 +0300
+
 snf-image (0.14-1~wheezy) wheezy; urgency=low
 
-  * release build
+  * New upstream version
 
  -- Nikos Skalkotos <skalkoto@grnet.gr>  Fri, 11 Apr 2014 10:40:08 +0300
 
@@ -285,3 +291,4 @@ snf-image-host (0.1-1) UNRELEASED; urgency=low
 
 
 
+