Renamed global.chat.history_directory to global.chat.directory

darcs-hash:20090817222736-58252-a8689514aad7e33ebaf0e2f72ba79809e6823206
Removed _file suffix from tls settings

darcs-hash:20090818111325-58252-7ba4bfea8c6a5ad72ffec06fd438323a4264e123