Added Steve Murphy to AUTHORS.
Added Steve Murphy to AUTHORS.

dsanders11/cartridge,Parisson/cartridge,syaiful6/cartridge,ryneeverett/cartridge,traxxas/cartridge,stephenmcd/cartridge,ryneeverett/cartridge,Kniyl/cartridge,dsanders11/cartridge,Kniyl/cartridge,Parisson/cartridge,traxxas/cartridge,wbtuomela/cartridge,wyzex/cartridge,Kniyl/cartridge,stephenmcd/cartridge,syaiful6/cartridge,Parisson/cartridge,stephenmcd/cartridge,ryneeverett/cartridge,wbtuomela/cartridge,wyzex/cartridge,traxxas/cartridge,wbtuomela/cartridge,dsanders11/cartridge,syaiful6/cartridge,wyzex/cartridge