Add package.py

with other minor fixes

package.py

@@ -0,0 +1,26 @@
+# Copyright 2017 Virgil Dupras
+#
+# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
+# which should be included with this package. The terms are also available at
+# http://www.gnu.org/licenses/gpl-3.0.html
+
+from argparse import ArgumentParser
+
+from hscommon.build import setup_package_argparser, package_cocoa_app_in_dmg
+
+def parse_args():
+    parser = ArgumentParser()
+    setup_package_argparser(parser)
+    return parser.parse_args()
+
+def package_cocoa(args):
+    app_path = 'build/dupeGuru.app'
+    package_cocoa_app_in_dmg(app_path, '.', args)
+
+def main():
+    args = parse_args()
+    print("Packaging dupeGuru with UI cocoa")
+    package_cocoa(args)
+
+if __name__ == '__main__':
+    main()