Fix broken maintenance mode Maintenance mode has been broken since r7fe19ebfe0d3 (Thu Jun 4) "Display caught errors on the page itself", fix it by passing the site entity, rather than the site module to isActivePeriod.

import gae_django
import app_profiler.app_profiler

def main():
   app_profiler.app_profiler.main()

if __name__ == '__main__':
   main()