* serf.h: update version number to 0.7.2

git-svn-id: https://svn.apache.org/repos/asf/serf/branches/0.7.x@1698986 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/serf.h b/serf.h
index 96d1399..d82b400 100644
--- a/serf.h
+++ b/serf.h
@@ -1025,7 +1025,7 @@
 /* Version info */
 #define SERF_MAJOR_VERSION 0
 #define SERF_MINOR_VERSION 7
-#define SERF_PATCH_VERSION 1
+#define SERF_PATCH_VERSION 2
 
 /* Version number string */
 #define SERF_VERSION_STRING APR_STRINGIFY(SERF_MAJOR_VERSION) "." \