[internal] added post-commit hook for autotagging

_post-commit.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+#
+# Creates a tag according to the number of commits on this branch
+#
+# To have git run this script on commit, create a "post-commit" text file in
+# .git/hooks/ with the following content:
+# #!/bin/sh
+# source ./_post-commit.sh
+
+type -P git &>/dev/null || { echo "git command not found. Aborting." >&2; exit 1; }
+
+TAGVER=`cat .tag`
+git tag "#$TAGVER"