Added gtk-testing branch for gtk port.
Merge pull request #2 from bensaward/gtk-testing

Merge gtk-testing and gtk-stable
GTK window in place.
Fixed the makefile.
Launcher does its job but doesn't hide when asked to do so.
fixed launcher: used execlp() instead of system() to remove need for a return value to close the launcher and launch the game. Now using xterm over gnome-terminal
Merge pull request #3 from bensaward/gtk-testing

Added gtk launcher. Removed gnome-terminal dependency, added xterm and gtk dependencies.
Merge pull request #4 from bensaward/gtk-stable

Merge gtk-stable and master branch.