Tidy Python problem 8.
Script to check all answers.

Currently works for haskell.
Haskell: solution to problem 8.
Haskell problem 9.
Merge branch 'master' of https://github.com/willrogers/euler
Haskell problem 10
Haskell problem 12.
Haskell problem 13.
Move prime function to Utils.
Haskell: minor corrections