Upgrade Node.js to version 7, required by gulp-testcafe

ben12 · dongxbin · commit 951742c209ba · 2019-10-11T11:01:48.000+08:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,5 @@
 language: node_js
+
 node_js: "8"
 
 before_install:
