Merge pull request #64 from hvr/pr/semigroups
authorDuncan Coutts <duncan@community.haskell.org>
Mon, 30 Nov 2015 11:13:03 +0000 (11:13 +0000)
committerDuncan Coutts <duncan@community.haskell.org>
Mon, 30 Nov 2015 11:13:03 +0000 (11:13 +0000)
Define Semigroup instances for base>=4.9


Trivial merge