* evas: Now an object will only receive once the same event.

	* evas: Now an object will only receive once the same event.

	Previously, due to propagation to parent, an event could have
	been received more than once by an object. This triggered
	strange behaviour in edje for example where you could receive
	mouse,down,1 signal many time for one swallowed object.

	This patch is a fix for that problem, I hope it doesn't break
	anything (e17 and elementary_test run fine here, but report
	any break related to events please).

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/evas@46869 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33