make sure to use jshint 2.4.x

cjolif · cjolif · commit f80524464ed9 · 2014-05-16T10:07:04.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,4 @@
 language: node_js
 node_js: "0.10"
-install: "npm -g install jshint"
+install: "npm -g install jshint@2.4.x"
 script: "jshint ."
