Makefile: fix the version number (#412)

We're at version 0.9.0 now ;-)

Signed-off-by: Martin Kaiser <martin@kaiser.cx>

Author: martin-kaiser

Makefile

@@ -18,7 +18,7 @@ GEN_SCRIPT   = $(SCRIPTS_DIR)/generate_tables.py
 
 # Version and date
 DATE    ?= $(shell date +%Y-%m-%d)
-VERSION ?= v9.0.0
+VERSION ?= v0.9.0
 REVMARK ?= Draft
 
 # URLs for downloaded CSV files