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Return values
----------------------------------------------------------------------
  o Set errors
    The following functions return Set error codes:
       FtpSetUser
       FtpSetBinary
    The return code is 1 if the string passed in are valid, 0 if not.
    FtpSetBinary() should be passed an abbreviation of "BINARY" or
    "ASCII" (thus, "b", "as", "BIN", etc).
  o FTP errors
    The rest of the functions (all the functions but the Set functions)
    return ftp error conditions.
    It will have one of the following values (or a numeric value if the
    number isn't one of these documented values):
      "0"              - successful call
      "-1"             - Error during FTP function call
    If the function returns a "-1" for a return code, the variable FTPERRNO
    will be set to one of the following values:
      "FTPSERVICE"     - unknown service
      "FTPHOST"        - unknown host
      "FTPSOCKET"      - unable to obtain socket
      "FTPCONNECT"     - unable to connect to server
      "FTPLOGIN"       - login failed
      "FTPABORT"       - transfer aborted
      "FTPLOCALFILE"   - problem openning local file
      "FTPDATACONN"    - problem initializing data connection
      "FTPCOMMAND"     - command failed
      "FTPPROXYTHIRD"  - proxy server does not support third party transfers
      "FTPNOPRIMARY"   - no primary connection for proxy transfer
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Functions Reference
----------------------------------------------------------------------
   -------------------------------------------------------------------
   FtpLoadFuncs
   -------------------------------------------------------------------
      rc = FtpLoadFuncs(quiet)
      Loads all the functions in the rxFtp package.
      If ANY parameters are passed to this function, it will bypass
      the program/author/copyright information normally displayed.
      All parameters are ignored (except to determine whether or not
      to bypass displaying the information).
   -------------------------------------------------------------------
   FtpDropFuncs
   -------------------------------------------------------------------
      rc = FtpDropFuncs()
      Drops all the functions in the rxFtp package.
   -------------------------------------------------------------------
   FtpVersion
   -------------------------------------------------------------------
      rc = FtpVersion(variable)
      Returns the version of RxFtp that you are running in the variable
      "variable".