[NEW]

   - Multiple hostfiles can now be passed via the -i option.  The
    argument can be the name of a single file or a quoted list of
    files.  The option can appear on the command line multiple times.
    -H and -i can be used together to create custom host lists.

  - The -L option will list all (if any) host- and command files found
    on their respective search paths.

  - The -W option will write out the inventory of hosts that would be
    processed if you actually executed the program, and then
    terminates.  This works only in test mode.  This allows you
    to embed tsshbatch in external shell scripts like this:

       for server in $(tsshbatch.py -i devserverlist -uatserverlist -W)
       do
         ssh $server
       done

    Why?  Because tsshbatch has lots of powerful ways to maintain
    inventories of hosts and combine them through includes and
    multiple command line arguments.  The -W option makes it
    convenient for external programs to make use of those inventory
    features.

  - The -F "string ..."  option will examine every file on the host-
    or command paths, looking for matching strings within these files.
    Matches will report the file name, the location within the file,
    and the line containing any of the specified strings.

    This is a simple, case-insensitive string literal match and does
    not support regular expressions.

    This is handy when you're looking for a host name or command
    string, say like, "sudo", and you don't want to have to manually
    go through all your support files.

  - The -V "string ..." option does the exact opposite of -F.  It
    lists all the files that do NOT contain any of the specified
    strings.

  - The -r option has been added to suppress reporting of start/stop
    statistics.  This allows you to make statistics reporting the
    default, say via the $TSSHBATCH environment variable, but
    override it when you need to.

  - A new directive, .notify, tells tsshbatch to print an informative
    message from within a command file.  This is a runtime activity
    and is helpful, for example when tracking progress of a long
    command file.

[CHANGES]

  - The -H option can now appear on the command line multiple times
    thereby creating an aggregate list of all hosts named therein.

  - Hostfiles must now be passed as an argument of -i.  This was
    done to provide a consistent way of passing multiple host
    files on the commandline.

  - .include targets (file name specifications) may now reference
    previously-define variables.


[BUG FIXES]

  - File transfers now properly honor the -s (silent output) flag.


TODO
----

  - Protect path walk from files/dirs that cannot be opened.


Future
------

  - Show incremental output as program executes

  - File Xfer: Renaming - Cmdfile?

  - File Xfer: Globing - what about dirs, do we recurse? - Cmdfile?

  - implement sudoers Mode:

    - Capture bad password
    - Capture failed command output
    - Write the server noise, as it appears to stderr for debug purposes
    - Note in docs: In this mode it will HANG waiting for interactive input.
    - Note in docs: There is no separation between stdout and sterr in this mode