App bundler script for Xboard OSX v3

Hello all,

I apologize if this sent before.  To me, it didn’t look like it did.

Anyway I did a little thinking and managed to git rid of the gtk related files (save the theme) by A) copying a little more from the system install of gtk and B) configuring the various settings files with the sed and echo commands in the script.  This way should look a lot better, and makes me less nervous of having files not related to xboard directly.

Also to further remove extra clutter, I decided to have the script generate the info.command and man.command launching scripts. This also stops the os from thinking they were downloaded whenever I try to open them right after building the bundle. (One less dialog box in my life is a good thing :-) )

Regards,
Josh Pettus