New operator for copying (hair) particle systems from one object to

another, including edit data (grooming).

This uses basically the same method as the existing connect/disconnect
feature. The main difference is that it allows working with multiple
objects and transferring the //particle/hair data// instead of the
//mesh// data (which is what connect/disconnect expects). This is a much
more realistic workflow when rigging, topology etc. changes and
groomed hair has to be transferred to the changed model.

source/blender/editors/physics/physics_ops.c

@@ -80,6 +80,7 @@ static void operatortypes_particle(void)
 	WM_operatortype_append(PARTICLE_OT_target_move_down);
 	WM_operatortype_append(PARTICLE_OT_connect_hair);
 	WM_operatortype_append(PARTICLE_OT_disconnect_hair);
+	WM_operatortype_append(PARTICLE_OT_copy_particle_systems);
 
 	WM_operatortype_append(PARTICLE_OT_dupliob_copy);
 	WM_operatortype_append(PARTICLE_OT_dupliob_remove);