Integrate ww.wp.xz.cn translation system

Hi, I see that your plugin is not correctly configured to support the ww.wp.xz.cn translation system (Glotpress).

From Slack imports it’s clear what’s the problem: “This plugin has no text domain declaration in the file header.”

However somebody has integrated it on your Github page, can you release this on a new version of the plugin?

Everybody will be happy to contribute translation in a simpler and faster way using this system 😉

Thank you!