Update node versions in Travis config

kunalkapadia · kunalkapadia · commit df6b3cb3f44c · 2017-02-03T20:04:29.000+05:30
diff --git a/.travis.yml b/.travis.yml
@@ -1,8 +1,8 @@
 language: node_js
 node_js:
-  - "4.6"
+  - "4.7"
   - "6.9"
-  - "7.2"
+  - "7.5"
 services:
   - mongodb
 cache:
