remove UndoT
Tap needs to take A => Any instead of A => Unit
Added error-appending Validation combinator for "search for success"
mechanics; an alternative to orElse-type behavior that appends errors.
Added tests for Validation#findSuccess
Order for NonEmptyList.
Merge pull request #245 from S11001001/topic/nel-order

Order for NonEmptyList
fix error message in Heap
add a safe tap operator, make clear that the other one is unsafe
Merge pull request #237 into scalaz-seven
Zipper fixes & tests

Ports 6f75ca66 and e4bda754, and reinstates the tests which have been disabled
in 541cf769.

I am not yet entirely sure what happens in ZipperTest: Apparently `===` is not
Scalaz' `Equal` but comes from specs2. This led to some weird test failures in
some cases and compilation errors in other cases (with 2.9 and 2.10 failing
differently). I replaced the problematic occurrences with explicit calls to
`Equal` or `==`.
Merge pull request #226 into scalaz-seven
Update core/src/main/scala/scalaz/LazyOption.scala

Before patch, lazyNone.isDefined == true  and  lazySome(3).isDefined == false
Merge pull request #250 from refried/patch-5

Update core/src/main/scala/scalaz/LazyOption.scala
Remove tests for triple composition

Many test failures on Travis are actually caused by OOM while checking
'traverse.sequential fusion' on 'Triple composition traverse'.
more bits of docs

Originally filed as #249, squashed and tuned by @larsrh.
run gen-type-class
tuned
Upgrade IO#catchLeft and IO#catchSomeLeft to scalaz.\/
Merge pull request #252 from bmjames/scalaz-seven

Upgrade IO#catchLeft and IO#catchSomeLeft to GlorifiedTuple
Specialize foldLeft for NonEmptyList; foldLeft/foldLeft1 for Tree.