Integration of Kinto with WebPush, in order to notify user agents of new changes.

In order to install the plugin, you need to first install it alongisde your kinto instance:

$ pip install kinto_webpush

And then include the plugin in your kinto.ini file:

kinto.includes = kinto_webpush

It aims to implement the following blueprint: https://github.com/Kinto/kinto/wiki/WebHooks