Specification differences

This is a list of known differences between Burlap and the current Sack spec.

Burlap allows int and float casts on every type. (Will change)
Burlap lets functions access variables declared after them. (May change)
Burlap does not buffer file IO, so flush simply returns none.
Burlap allows setting list keys that don't exist.
Burlap allows comments at the end of files.
Burlap does not warn about style issues.
Burlap allows bytes less than 8 bits.
Burlap allows printing none.