scalaz/scalaz — pull request #680 by wemrysi (2014-03-30 22:25:26+00:00)
Title: Tidying up Foldable.collapse

This PR removes `Foldable.collapse{2-7}` in favor of clients calling collapse on composed Foldables themselves. It also removes the unnecessary requirement of implicit Foldable evidence from the signature of `Foldable.collapse`.