Fix FutureTest code.

Adding methods to package object trumps the ones of the
same name formerly imported.
fix take and takeViaUnfold - don't initialize tail for last taken element
another version of zipAll/zipWithAll which doesn't make finite streams infinite
fix take and takeViaUnfold - don't initialize tail for last taken element
Also hide scala std lib Some, None, Right and Left
tests for chapter 3 and 4
added EitherSpec
add readme for munich study group
fix formatting
fix formatting
Update README_muc.md
add notes
Merge branch 'master' of github.com:fpinscala-muc/fpinscala
tests for chapters 4-6
Merge branch 'master' of github.com:fpinscala-muc/fpinscala
Merge pull request #283 from OleTraveler/hide-stdlib

Also hide scala std lib Some, None, Right and Left
tests for chapter 6
Fixed syntax
Merge pull request #287 from AlexanderDaniel/answerkey_monad_exercise6

Fixed syntax in answer key for monads exercise 6
Update README_muc.md