add contributors to package.json
add contributors to package.json

stevemao/mout,millermedeiros/mout,stevemao/mout,ChristianGrete/mout,Oyamasiphula/mout,mout/mout,MathiasPaumgarten/mout,ChristianGrete/mout,Oyamasiphula/mout,mout/mout,MathiasPaumgarten/mout,millermedeiros/mout