util.stanza: Allow U+7F
Allowed by XML despite arguably being a control character.
Drops the part of the range meant to rule out octets invalid in UTF-8
(\247 starts a 4-byte sequence), since UTF-8 correctness is validated by
util.encodings.utf8.valid().
# Prosody IM Server
## Description
Prosody is a server for Jabber/XMPP written in Lua. It aims to be easy
to use and light on resources. For developers, it aims to give a
flexible system on which to rapidly develop added functionality or
rapidly prototype new protocols.
## Useful links
Homepage: https://prosody.im/
Download: https://prosody.im/download
Documentation: https://prosody.im/doc/
Jabber/XMPP Chat:
Address:
prosody@conference.prosody.im
Web interface:
https://prosody.im/webchat
Mailing lists:
User support and discussion:
https://groups.google.com/group/prosody-users
Development discussion:
https://groups.google.com/group/prosody-dev
Issue tracker changes:
https://groups.google.com/group/prosody-issues
## Installation
See the accompanying INSTALL file for help on building Prosody from source. Alternatively
see our guide at https://prosody.im/doc/install