Refactored the delta plugin to use prototype.
Refactored the delta plugin to use prototype.

beni55/engi,vizorvr/vizor,beni55/engi,vizorvr/patches,engijs/engi,vizorvr/vizor-create,vizorvr/vizor,vizorvr/vizor-create,vizorvr/patches,vizorvr/vizor-create,engijs/engi,vizorvr/patches,beni55/engi,vizorvr/patches,vizorvr/vizor,vizorvr/patches,engijs/engi