Upgrade stack configs

bergmark · bergmark · commit 7b8578b00a6b · 2017-03-18T10:03:23.000+01:00
diff --git a/stack-lts6.yaml b/stack-lts6.yaml
@@ -1,4 +1,4 @@
-resolver: lts-6.27
+resolver: lts-6.30
 packages:
 - '.'
 extra-deps:
diff --git a/stack-lts7.yaml b/stack-lts7.yaml
@@ -1,4 +1,4 @@
-resolver: lts-7.14
+resolver: lts-7.19
 packages:
 - '.'
 extra-deps:
diff --git a/stack-lts8.yaml b/stack-lts8.yaml
@@ -0,0 +1,6 @@
+resolver: lts-8.1
+packages:
+- '.'
+flags:
+  aeson:
+    fast: true
diff --git a/stack-nightly.yaml b/stack-nightly.yaml
@@ -1,4 +1,4 @@
-resolver: nightly-2016-12-22
+resolver: nightly-2017-02-29
 packages:
 - '.'
 extra-deps:
