Update build for release

Merge remote-tracking branch 'upstream/master'

Merge remote-tracking branch 'upstream/master'

Merge pull request purescript#17 from zudov/master

Remove explicit type annotations for `id`

Merge pull request purescript#16 from purescript/fix-warning

Fix partial pattern match warning for fromJust

Merge pull request purescript#15 from purescript/lazy-folds

Add "lazy" version of `maybe`

Merge pull request purescript#14 from purescript/semigroup-behaviour

Put back the original semigroup behaviour

Merge pull request purescript#9 from hdgarrood/master

Fix Invariant Maybe instance name

Updates for RC

Updates for RC