VinylRecords/Vinyl — pull request #35 by jonsterling (2014-03-23 21:46:35+00:00)
Title: Spine-strictness by default

Data structures ought to be spine-strict. Laziness is trivially recovered by using Vinyl within a lazy *idiom* (e.g. `Rec rs LazyIdentity`).

- [ ] Add various type class instances to `Identity` and `LazyIdentity` idioms.