Facebook Chat for Pidgin full changelog

This release fixes these two recent issues:

"Failed to get sync_sequence_id" (#449)
Facebook increased the version number requirement for a significant fraction of users (but not everyone, at least not yet)
"Failed to read fixed header" (#410 for nss, #444 for gnutls)
NSS and GnuTLS, the two TLS/SSL libraries that libpurple supports, enabled TLS 1.3 support in recent versions, and so did facebook. There were some incompatibilities with libpurple 2.12.0 (fixed in 2.13.0) and a subtle race condition on our side.
Users of versions older than libpurple 2.13.0 who can't upgrade to the latest version might still need to follow the instructions in #410.
An error message with this text may still appear for other networking issues that are unrelated (it's a "connection reset by peer" at the beginning of the connection)
And other not so recent issues:

Fixed crashes immediately after connection errors when glib is built with G_ENABLE_DEBUG or possibly with newer versions of it (#403)

* Support for new group chats
* Fix for setting status messages
* Fix for when FB chat is down for maintenance

Version 1.65 downloaded all buddies at startup but not online ones.

Version 1.64 fixes some friend requests not going away and buddy icons not working for some people.