Improvements on the combined graphs

* pandora_console/operation/agentes/interface_traffic_graph_win.php:
	Modified the graph function call. Modified the refresh time.

* pandora_console/include/functions_graph.php: Modified the function
	"graphic_combined_module". Now is possible to set the items
	name and choose which values will appear on the items list.

* pandora_console/include/functions_custom_graphs.php: Added new
	parameters to the function "custom_graphs_print" to call the
	function "graphic_combined_module".
Improved the items information of the module graphs

* pandora_console/godmode/setup/setup_visuals.php,
  pandora_console/include/functions_config.php: Added a
	new config token to choose if the module graphs
	data should be shortened.

* pandora_console/include/functions_custom_graphs.php:
	Added the unit list parameter to the function
	"custom_graphs_print".

* pandora_console/operation/agentes/interface_traffic_graph_win.php:
	Improved a function call.

* pandora_console/include/functions_graph.php: Modified
	the function "graphic_combined_module". Now is
	possible to add custom units for the items and
	short the data.
Merge branch 'feature/ticket#1331-CombinedGraph' into develop