Add commit-release and npm scripts

tools/commit-release

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Any copyright is dedicated to the Public Domain.
+# http://creativecommons.org/publicdomain/zero/1.0/
+
+set -eEu -o pipefail
+shopt -s extdebug
+IFS=$'\n\t'
+trap 'onFailure $?' ERR
+
+function onFailure() {
+  echo "Unhandled script error $1 at ${BASH_SOURCE[0]}:${BASH_LINENO[0]}" >&2
+  exit 1
+}
+
+git add -A
+git commit -m "release: $(cat package.json | $(npm bin)/jase version)"
+git tag v$(cat package.json | $(npm bin)/jase version)