added gooey dependency

Author: tridge

setup.py

@@ -38,7 +38,8 @@
        url = 'https://github.com/CanberraUAV/cuav',
        author = 'CanberraUAV',
        install_requires = [ 'pymavlink',
-                            'MAVProxy' ],
+                            'MAVProxy',
+                            'gooey'],
        author_email = 'andrew-cuav@tridgell.net',
        classifiers=['Development Status :: 4 - Beta',
                     'Environment :: Console',