Updated authors field
Updated authors field

Everyone that has committed to the Piston repo is listed as an author
in the format "github_name <github_email>".

axelmagn/piston,caldwell/piston,oldmanmike/piston,Potpourri/piston,placrosse/piston,bvssvni/piston,PistonDevelopers/piston,bvssvni/piston,KevinFrans3/piston,mitchmindtree/piston,getynge/piston,tempbottle/piston,PistonDevelopers/piston