Mitch Stevens

Added extra files to Haskell directory

1

Added solutions to the transformerBST problem (which has a really nice solution in haskell) and the dice problem. Will add documentation and tests soon. Might also be a good idea...

I recently created a purescript wrapper for rough notation, would you like to add it to the readme?

## Description When the below code is compiled I get the error ``` purs: An internal error occurred during compilation: unifyTypes: unspecified skolem scope Please report this at https://github.com/purescript/purescript/issues CallStack...