Update CI versions

charmander · charmander · commit c4606258522e · 2017-11-22T08:10:34.000-08:00
PostgreSQL 9.1 is no longer available on 14.04.
diff --git a/.travis.yml b/.travis.yml
@@ -5,6 +5,10 @@ matrix:
     - node_js: "4"
       addons:
         postgresql: "9.1"
+        dist: precise
     - node_js: "6"
       addons:
         postgresql: "9.4"
+    - node_js: "8"
+      addons:
+        postgresql: "9.6"
