Changelog for foldl-transduce-0.2.1.0

# 0.2.1.0 - Comonad and Extend instances for Transducer - Added words splitter - Added take, drop, takeWhile, dropWhile transducers # 0.2.0.0 - Removed the Spliiter type. Now it's transducers for everything! - generalizeTransducer -> _generalize - simplifyTransducer -> _simplify - removed chokepoint and chokepointM # 0.1.2.0 - Added explicit bifunctors dependency. - Added Transduce', TransduceM' type synonyms. - Added groups', groupsM'. # 0.1.1.0 - Changed signatures of transduce' and transduceM'. - generalize' -> generalizeTransducer - simplify' -> simplifyTransducer - dropped direct profunctors dependency.