- improved release process (using npm script)

- updated version number

scripts/release.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -e
+
+ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"/..
+
+pushd $ROOT
+VERSION=$(node -e "console.log(require('./package.json').version)")
+./scripts/update-tough-cookie.sh
+node ./scripts/update-plugin-xml.js $VERSION
+git commit -a -m "release v$VERSION"
+git tag "v$VERSION"
+npm publish
+popd