update luabin.sh.sample to use cjson
update luabin.sh.sample to use cjson

tst2005/lunajson,grafi-tt/lunajson,bigcrush/lunajson,csteddy/lunajson,grafi-tt/lunajson,bigcrush/lunajson,grafi-tt/lunajson,csteddy/lunajson,tst2005/lunajson