Use the latest node point releases in travis

hdgarrood · hdgarrood · commit 5ac412bf1fb6 · 2015-12-10T11:47:17.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,8 @@
 language: node_js
 sudo: false
 node_js:
-  - 4.2
-  - 5.2
+  - 4
+  - 5
 env:
   - PATH=$HOME/purescript:$PATH
 install:
