Update resolver to 4.2

mseri · mseri · commit b5a09712d103 · 2016-01-19T15:04:49.000Z
This uses ghc 7.10.3 and works much better on osx
diff --git a/stack.yaml b/stack.yaml
@@ -1,4 +1,4 @@
-resolver: lts-2.22
+resolver: lts-4.2
 packages:
 - '.'
 extra-deps: []
