v0.1.0.0

First import of package.

v0.1.0.1

Documentation fixes.

v0.1.0.2

Build with ghc 7.8.4.

v0.1.1.0

StepFunction is now an instance of Functor.

v0.1.1.1

Build with GHC 8.0.1.

v0.1.1.2

Build with GHC 8.2.2