fix for pubsub priorities
fix for pubsub priorities

Nayar/PhysicsJS,eric-seekas/PhysicsJS,Rawneed/PhysicsJS,jpellerin/PhysicsJS,Rawneed/PhysicsJS,pietro909/PhysicsJS,rohit765/PhysicsJS,eric-seekas/PhysicsJS,wellcaffeinated/PhysicsJS,Nayar/PhysicsJS,wellcaffeinated/PhysicsJS,Luwdo/PhysicsJS,VANITAX/PhysicsJS,griever989/PhysicsJS,mcanthony/PhysicsJS,Luwdo/PhysicsJS,haithemaraissia/PhysicsJS,griever989/PhysicsJS,haithemaraissia/PhysicsJS,rohit765/PhysicsJS,pietro909/PhysicsJS,mcanthony/PhysicsJS,VANITAX/PhysicsJS,jpellerin/PhysicsJS