Add contravariant laws; test them on Function1.
Contravariant instance for Kleisli.
Merge pull request #287 from S11001001/topic/contravariant

Contravariant laws; instance for Kleisli.
Use Travis CI default sbt and extend build matrix
Merge pull request #247 from gildegoma/scalaz-seven-travisci-fullmatrix

Travis CI: Extend the build matrix for Scalaz Seven branch
Revert "updated SBT plugins"

sbt-release plugin depends on the task "publish", but sbt-pgp doesn't sign
artifacts in "publish" anymore.

This reverts commit 75213e92533c8abb2bcc1b7a542aa0fc07026a6e.
Releasing 7.0.0-M8
Bump to 7.0-SNAPSHOT
Fixing a typo
Merge pull request #288
Move traverseS_ to Foldable (alongside traverse_) and add syntax
Move sequenceS_ to Foldable
Merge pull request #290 from bmjames/state

Move traverseS_ to Foldable
Fix EitherT.||| infinite recursion
Merge pull request #291 from wemrysi/eitherT-orElse-loop

Fix EitherT.||| infinite recursion
Implement Foldable[Stream]#foldLeft in terms of scala.Stream#foldLeft

This fixes SOE on Foldable[Stream].foldLeft on large streams.
Merge pull request #292 from bmjames/scalaz-seven

Implement Foldable[Stream]#foldLeft in terms of Stream#foldLeft
convert scala.Either to \/
MonadTell and MonadListen typeclasses
cleaning