`nil` properties don't need to be set.
Move `Cursor` into net code.
Remove unused `mk_atom` and `mk_seq`.
Clean up extra local variable.
This check should be covered by `is_instance`.
Fix reference error `errors` -> `err`.
`r` is not aliased to `r.expr`.
Method calls are referenced with `:`.
Lua arrays are contained in `{...}`.
Fix code indentation.
Use luasocket's mime to convert base64 data.
Look for the correct no more rows message.
Handle `atom` responses correctly.
Feed responses are correctly handled now.