Changed warnings for returning false instead of NULL
Changed warnings for returning false instead of NULL

YilunZhou/Klampt,krishauser/Klampt,krishauser/Klampt,hpbader42/Klampt,arocchi/Klampt,stevekuznetsov/Klampt,arocchi/Klampt,bbgw/Klampt,hpbader42/Klampt,krishauser/Klampt,bbgw/Klampt,krishauser/Klampt,hpbader42/Klampt,stevekuznetsov/Klampt,stevekuznetsov/Klampt,YilunZhou/Klampt,stevekuznetsov/Klampt,hpbader42/Klampt,YilunZhou/Klampt,bbgw/Klampt,hpbader42/Klampt,arocchi/Klampt,krishauser/Klampt,arocchi/Klampt,YilunZhou/Klampt,bbgw/Klampt,krishauser/Klampt