TO DO list for express
======================

Here is a list of things TO DO for express:

* release on Hackage -- this should coincide with a new release for both
  Speculate and Extrapolate.


* review `Data.Express` haddock

* document the `Instances` module

* test the `Instances` module

* sweep occurrences of `TODO:` throughout source files

* Document `test/Test.ListableExpr` module thoroughly;