mod_http_muc_log: Ignore fallback body next to XEP-0444: Message Reactions Some clients send a quote reply along with XEP-0444 in order to accommodate legacy clients. This however takes up some space and the reaction is shown twice. This is a matter of some debate with diverging opinions about whether this should be done at all and how to handle this.

# Introduction

This module sends a [version query][xep0092] to clients when they
connect, and logs the response, allowing statistics of client usage to
be recorded.

Note that since this is per connection, there will be a bias towards
mobile clients on bad connections.

## Example

    info    Running Running Swift version 4.0