Added fn_check_steamuser
Added fn_check_steamuser

Sodierlow/linuxgsm,Maxximou5/linuxgameservers,SingingTree/linuxgsm,GameServerManagers/LinuxGSM,zunnu/linuxgsm,zunnu/linuxgsm,BogusCurry/linuxgsm,Maxximou5/linuxgameservers,dgibbs64/linuxgsm,kyroskoh/linuxgsm,BogusCurry/linuxgsm,kyroskoh/linuxgsm,GameServerManagers/LinuxGSM,dgibbs64/linuxgsm,SingingTree/linuxgsm,Sodierlow/linuxgsm