Added 32bit & 64bit int support
to_bson userdata = null
check for empty array with ascii 5 if so insert an empty array not object
Added query example with order and regex
fic bson & add more exaples
Update bson.lua

revert back start from 0 for advance queries
More examples
Start lua index from 1 but bson from 0

	we start the array count from 0 but need to add 1 to mongo array start from 0 
lua from 1
start the array building loop from 0
and compensate it by adding 1 to seen_n
and removing 1 from high_n
seems to work??