[Web] Prepare for oauth2

[Web] Some lib updates
[Web] Allow to add a footer

data/web/inc/lib/vendor/bshaffer/oauth2-server-php/README.md

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+oauth2-server-php
+=================
+
+[![Build Status](https://travis-ci.org/bshaffer/oauth2-server-php.svg?branch=master)](https://travis-ci.org/bshaffer/oauth2-server-php)
+
+[![Total Downloads](https://poser.pugx.org/bshaffer/oauth2-server-php/downloads.png)](https://packagist.org/packages/bshaffer/oauth2-server-php)
+
+View the [complete documentation](https://bshaffer.github.io/oauth2-server-php-docs/)