Rename morss/cgi.py into morss/wsgi.py

To avoid name collision with the built-in cgi lib

main.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
 from morss.__main__ import main
-from morss.cgi import application
+from morss.wsgi import application
 
 if __name__ == '__main__':
     main()