Merge pull request purescript#158 from purescript/fix-warnings

Fix warnings

Merge pull request purescript#155 from drewolson/scanr-lazy

Add scanrLazy for lazy lists

Merge pull request purescript#153 from garyb/nel-cons-construction

Add cons/snoc variants for creating NEL from item & list

Merge pull request purescript#152 from garyb/unfoldable1

Add `Unfoldable1` instances for non-empty lists

Merge pull request purescript#151 from cryogenian/with-index

added FunctorWithIndex, FoldableWithIndex, TraversableWithIndex insta…

Merge pull request purescript#149 from purescript/compiler/0.12

Updates for 0.12

indexed foldable-traversable instances (purescript#134)

* indexed foldable-traversable instances

* update foldable-traversable dep

* TraversableWithIndex implementation

* Data.List: reuse mapWithIndex from Data.FunctorWithIndex

* fix List.foldrWithIndex

in turn fixes List.mapWithIndex

* simplify List right fold code

reuse left fold for reversals

* add failing mapWithIndex test for Lazy List

* fix Lazy List foldrWithIndex

* indexed instance tests

* clarify reversal in traversableWithIndexList

Avoid infinite loop possibility with takeEnd (purescript#133)

* Avoid infinite loop possibility with takeEnd

* Protect `take` against infinite recursion

Add dropEnd and takeEnd (purescript#130)

* added takeEnd and dropEnd

* added tests

* fix the docs

* fix test labels

* fix test message

Require foldable-traversable ^3.3.0 for Traversable1 support (purescr…

…ipt#128)