Merge pull request #306 from donejs/bg-colon-bindings

Fix travis build

Author: bgando

package.json

@@ -34,7 +34,7 @@
     "pg": "4.5.6"
   },
   "engines": {
-    "node": "^5.10.1"
+    "node": "6.11.0"
   },
   "repository": {
     "type": "git",