title: What's the correct way to install a grails plugin from a zip file?
body: <p>In recent versions of Grails <a href="http://grails.org/doc/2.2.x/ref/Command%20Line/install-plugin.html" rel="noreferrer"><code>install-plugin</code></a> command has been deprecated. What is now the recommended way of installing a plugin that is not available via some repository. Assume the plugin is only available locally as zip file, e.g. after running <code>grails package-plugin</code>?</p>