Event dispatching loop

This loop will run the event base until either there are no more added events, or until something calls loopexit.

Property definitions

libevent $ NativeEventBase :: dispatch
	# Event dispatching loop
	#
	# This loop will run the event base until either there are no more added
	# events, or until something calls `loopexit`.
	fun dispatch `{ event_base_dispatch(self); `}
lib/libevent/libevent.nit:104,2--108,46