Log Message:
Bump version to 3.21.56
     * Maintenance release

    ARQ rx/tx
      * Added tx code to correct transfers of 8 bit ARQ data.
        Needed to circumvent recent UTF-8 char support when
        transferring data files.
      * Added status bar notification when AMP extraction is
        is being processed.
      * Removed timeout on "Extracting FLAMP" and "Extracting \ 
FLMSG"
        status messages.