added --help
added --help

jamespfinn/castnow,RobertoMalatesta/castnow,burk3/castnow,send2moran/MP4_Convertor,xat/castnow,rk222ev/castnow,Enchufa2/castnow,send2moran/MP4_Convertor,walison17/castnow,vivekjuneja/castnow,jpetazzo/castnow,hoatle/castnow,mafintosh/castnow,gesellix/castnow,maliciamrg/castnow,maliciamrg/castnow,apopen/castnow,robinst/castnow