add git-version-gen magic to automatically generate package version
diff --git a/.gitignore b/.gitignore
index c292a61..d61cdc5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,6 @@
 install-sh
 stamp-h1
 libtool
+
+.tarball-version
+.version