forked from PsychoticNinja/irssi
added window_item_destroy(), window_item_remove() doesn't destroy the item anymore window_find_item()'s first parameter changed from WINDOW_REC to SERVER_REC git-svn-id: http://svn.irssi.org/repos/irssi/trunk@922 dbcabf3a-b0e7-0310-adc4-f8d773084564