Move MonadCatch to its proper namespace directory
(in project exercisses)
Merge pull request #298 from newlandsvalley/master

Move MonadCatch to its proper namespace directory
Remove out-of-date iomonad answers
Merge pull request #300 from newlandsvalley/master

Remove out-of-date iomonad answers
Solution for Exercise 11.6
Merge pull request #302 from salmonsushi/master

Solution for Exercise 11.6
Update Monad.scala