Don't add .sig file to messages posted or emailed anonymously (duh!).
writemsg() now handles the anonymous name in the drop files (using WM_ANON for the first time?). A little mixed-case NETMAIL.MSG paranoia (for case-sensitive file systems). More use of SAFEPRINTF(). More use of removecase(). More attribute flags represented (with a single character) in the 'A' column of mail and sub-board message listings.