event_handler: Use erlang:send_after instead of timer:send_after.
event_handler: Use erlang:send_after instead of timer:send_after.

The version in the erlang module uses a time wheel and is much faster than the
version in the timer module.

oldmantaiter/disco,seabirdzh/disco,pooya/disco,seabirdzh/disco,simudream/disco,mozilla/disco,discoproject/disco,beni55/disco,discoproject/disco,ktkt2009/disco,simudream/disco,beni55/disco,oldmantaiter/disco,ErikDubbelboer/disco,seabirdzh/disco,pooya/disco,discoproject/disco,ErikDubbelboer/disco,pombredanne/disco,mwilliams3/disco,ErikDubbelboer/disco,pombredanne/disco,beni55/disco,mwilliams3/disco,ktkt2009/disco,mwilliams3/disco,oldmantaiter/disco,ktkt2009/disco,discoproject/disco,ktkt2009/disco,simudream/disco,simudream/disco,discoproject/disco,pombredanne/disco,mwilliams3/disco,ErikDubbelboer/disco,oldmantaiter/disco,mozilla/disco,beni55/disco,ktkt2009/disco,seabirdzh/disco,mwilliams3/disco,seabirdzh/disco,pombredanne/disco,pooya/disco,mozilla/disco,beni55/disco,mozilla/disco,pooya/disco,pombredanne/disco,ErikDubbelboer/disco,oldmantaiter/disco,simudream/disco