Travis CI: Use Node.js stable

cvrebert · cvrebert · commit 10ee03ce8475 · 2015-11-17T20:04:16.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -9,6 +9,7 @@ gemfile:
   - test/gemfiles/sass_3_4.gemfile
   - test/gemfiles/sass_head.gemfile
 before_install:
+  - "nvm install stable"
   - "npm install"
 matrix:
   allow_failures:
