add node 8 and 10 to Travis

Hage Yaapa · Hage Yaapa · commit 9279b54f5148 · 2018-07-27T13:14:54.000+05:30
diff --git a/.travis.yml b/.travis.yml
@@ -3,3 +3,5 @@ node_js:
   - "4.4.4"
   - "5.11.1"
   - "6.2.0"
+  - "8.10.0"
+  - "10.7.0"
