Add missing top-level reexports.
This problem was masked by what is seemingly a cabal bug.
https://www.haskell.org/pipermail/haskell-cafe/2014-December/117257.html
Add tutorial files to other-modules section so they are shipped in the source tarball
Updated TODO
Add *.md, Doc/*.md to extra-doc-files so they are included in the tarball
Add haddocks for typeclass polymorphic function specialisations, plus some other bits
We shouldn't have used Default for QueryColumnRunner!  Just add a new typeclass for it.
We didn't actually need the type specialisation haddock for aggregate
version -> 0.3
Bump semigroups and transformers
Add DefaultExplanation to the docs