Clean: deprecate Itemgroup.has(),
Clean: deprecate Itemgroup.has(),

we are not Java,
directly use hasattr(your_item_group, some_attr) instead.

gst/alignak,titilambert/alignak,titilambert/alignak,gst/alignak,Alignak-monitoring/alignak,gst/alignak,Alignak-monitoring/alignak,titilambert/alignak,gst/alignak,titilambert/alignak