Merge pull request #44 from Porges/lts-updates

Update supported Stackage LTSes

Author: Porges

.travis.yml

@@ -21,6 +21,8 @@ env:
 - ARGS="--resolver lts-9"
 - ARGS="--resolver lts-10"
 - ARGS="--resolver lts-11"
+- ARGS="--resolver lts-12"
+- ARGS="--resolver lts-13"
 - ARGS="--resolver lts"
 - ARGS="--resolver nightly"
 

stack.yaml

@@ -3,4 +3,4 @@ extra-package-dbs: []
 packages:
 - '.'
 extra-deps: []
-resolver: lts-9.12
+resolver: lts-13.4