2.0.0
=====
* Rework the Error interfaces to make it easier to differentiate
between errors related to bad input and errors related to incorrect
usage.
1.1.0
=====
* Add is_last_quintet_valid() and is_last_octet_valid() functions which can
be used to figure out if the final input symbol is valid given the number
of bits. This can be useful for finding and correcting errors.