mod_http_oauth2: Make note about handling repeated
RFC 6749 states
> If an authorization code is used more than once, the authorization
> server MUST deny the request and SHOULD revoke (when possible) all
> tokens previously issued based on that authorization code.
We should follow the SHOULD.
The MUST is already covered by removing the code state from the cache.
Introduction
============
This module turns Prosody hosts into components of other XMPP servers.
Configuration
=============
Example configuration:
``` {.lua}
VirtualHost "component.example.com"
modules_enabled = { "component_client" }
component_client = {
host = "localhost";
port = 5347;
secret = "hunter2";
}
```