Start 1.15.x development

diff --git a/Makefile b/Makefile
index 0d6e17d..ffa6948 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 1
-PATCHLEVEL = 14
+PATCHLEVEL = 15
 SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = .svn
 NAME = Unnamed
 
 # *DOCUMENTATION*