ICQ: Added patch from ryo-oh-ki:
 1. Compatibility fix for third-party local ICQ servers - ICQ Groupware and IserverD. Added new option in Network -> ICQ -> Account -> "[X] Legacy fix", it's off by default (wont connect to old ICQ servers).
 2. Compatibility fix for old non-unicode ICQ clients (crashes on file transfer).
 3. Fixed double-freed memory in oscar_filetransfer.cpp (crashes after file transfer).

git-svn-id: http://svn.miranda-ng.org/main/trunk@3499 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c