Haskell solution to the maze solver 'dev-challenge'

To run this, you need ghc (or runhaskell) plus the JuicyPixels library.

On a Debian machine, you can get these from the repositories:

sudo apt-get install ghc libghc-juicy-pixels

After this, you can either run with runhaskell or compile and run using ghc maze.hs && ./maze