Fix glob for icons

setup.py

@@ -56,6 +56,6 @@ setup(
         'Operating System :: POSIX',
         'Topic :: Internet :: WWW/HTTP',
     ],
-    package_data={'labelme': ['icons', 'resources.qrc']},
+    package_data={'labelme': ['icons/*', 'resources.qrc']},
     scripts=['scripts/labelme'],
 )