Don't require extra jquery lib. Use system one instead.
Don't require extra jquery lib. Use system one instead.

Signed-off-by: Mariusz Fik <e22610367d206dca7aa58af34ebf008b556228c5@fidano.pl>

Fisiu/calendar-oswiecim,firemark/calendar-oswiecim,Fisiu/calendar-oswiecim,firemark/calendar-oswiecim,hackerspace-silesia/calendar-oswiecim,firemark/calendar-oswiecim,hackerspace-silesia/calendar-oswiecim,Fisiu/calendar-oswiecim,hackerspace-silesia/calendar-oswiecim