Bug-fix: pass the 'from' name to writemsg() and editor_inf() so that the drop
files and editors have the correct sender name in all situations (not just when posting on "real name only" sub-boards). "ANONYMOUS" postings work too, but mainly Internet & FidoNet Netmail were fixed. Use removecase() for NETMAIL.MSG (in case there's a lowercase version). Use subj in place of title and to in place of dest in argument names. Some constification of argument types.