atavism extincted: old nasty IQ handler mechanism

git-svn-id: http://svn.miranda-ng.org/main/trunk@6312 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Facebook: Multi user chat improvements

- Load unread messages at login
- Mark received messages as read

git-svn-id: http://svn.miranda-ng.org/main/trunk@6313 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Jabber IQ handlers: ability to handle the same packet by two or more handlers

git-svn-id: http://svn.miranda-ng.org/main/trunk@6314 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
duplicate packet removed

git-svn-id: http://svn.miranda-ng.org/main/trunk@6315 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Langpack Polish: update

git-svn-id: http://svn.miranda-ng.org/main/trunk@6316 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Clist: Ability to show contacts as "LastName FirstName"

git-svn-id: http://svn.miranda-ng.org/main/trunk@6317 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
crash fix

git-svn-id: http://svn.miranda-ng.org/main/trunk@6318 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
- filetransfer::iqid converted from string to int;
- further code cleaning

git-svn-id: http://svn.miranda-ng.org/main/trunk@6319 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
very rare crash in passing the ad-hoc query window via the query id

git-svn-id: http://svn.miranda-ng.org/main/trunk@6320 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
- old junk removed;
- mir_free() doesn't require a check

git-svn-id: http://svn.miranda-ng.org/main/trunk@6321 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c