Added feature to filter by module in events.

2014-09-01  Miguel de Dios <miguel.dedios@artica.es>

	* pandora_console/include/functions_graph.php,
	pandora_console/operation/events/events.build_query.php,
	pandora_console/operation/events/events.php,
	pandora_console/operation/events/events_list.php: added feature to
	filter by module in events.

	TICKETS #385
Update lost line in the changelog
Merge branch 'develop' of github.com:pandorafms/pandorafms into develop