AFD

Fix multiple local root exploits in get_afd_path() and get_mon_path(), which are used by nearly all binaries. Fixed some memory allocation bugs in dir_ctrl dialog. New option wmo2ascii, to remove SOH, ETX and the two carriage returns from the text. Old files are now logged in the receive log. Option to insert the current date into the subject of a mail and in the directory name when retrieving files from a remote host.