Addition of '--ping' option.

This feature enhancement adds the '--ping' option to the
command-line version of CUT.  This allows an application to simply
determine if there is connectivity with a CEENBoT running a
Program Loader.
Removed 'unl-cut' references.

Removed all 'unl-cut' references and renamed them to 'cbtool'.
'About' and '--version' info Changes.

Made some changes to what is presented when the user requests
the 'About' box (GUI) or invokes with the '--version' option.

Information about the NSF grant number has been provided.

Copyright info has been removed.  However, based on some research
I've done, I suspect those will have to be placed back.
OSX Info should say 32-bit Only.

The OSX info displayed should say 32-bit only, as only the 32-bit
compile versions will be released.  These should run fine under
64-bit systems.  There is no reason, nor advantage to release a
64-bit compilation of this software product.  (At least for the
time being, no such reason has been encountered).
Minor Fixes.

A few fixes:

    - OS X references now state 32-bit build only.  Since only
      32-bit builds will be generated for this software product.
      (It was accidently omitted for 'command-line' builds, b/c
      there are two places where this string exists.  This will
      have to be fixed or addressed somehow).

    - File dialog when selecting hex file now takes *.ihex and *.hex
      so that these file types become visible.  Also, as a just-in
      -case scenario, there's also an "All files *" case.

    - Drop-down menus now have an obvious '--N/A--' and '-- kbps'
      selections (by default) so that it is obvious nothign in
      selected.  IN some platforms (Win, Linux) it used to be
      empty, but on OS X, it made appear as if these settings were
      set by default when in fact, they weren't.  Hence the addition
      of these "you need to do something" options.
Updated "About Box" dialog box.

A new 'spiffy' looking 'About Box' dialog has been added to
replace the old dialog.  While much of the needed work for
this is in place, the next step is to include 'licensing'
information about the software.  That is yet to be done,
but at the very least shows the proof-of-concept.
Version file needs change.

Just changed the version file.
Added 'Splash Screen' Intro.

Added the 'Splash Screen' intro, which is pretty neat. ;o)
Added delay for Splashscreen.

Added a bit of a delay for the splashscreen to be seen by
itself before the main application window shows.
Minor Changes for 10.5.8 OSX builds.

This commit includes changes specifically to accommodate some
compiler warnings generated when building in OS X 10.5.8 ("Leopard").

Mainly, a static constant initializer that is not of the 'integral'
type was moved to the 'cut.cpp' file.

Also, wxID's are signed, so any arguments that take these have been
changed from 'UINT' to simply 'INT'.
Addition of some Debugging Messages.

Added some additional debugging messages for diagnosing baud
change errors between CUT and the Program Loader running on the
CEENBoT.
Version change.

The source code needs to properly reflect the changes by way of
the 'version' file.