no dev, no rc

tools/wget_semver

@@ -17,7 +17,7 @@ function usage {
 function get_github {
 	release=$( git ls-remote --tags --sort="v:refname" \
 		git://github.com/$REPO_NAME \
-		| tail -n1 | cut -f2 | cut -d '/' -f3 )
+		| grep -v dev | grep -v rc | tail -n1 | cut -f2 | cut -d '/' -f3 )
 	release=${release%^\{\}} # remove extra characters ^{} from github
 	echo $release
 }