Lint addons and modes with ecmaVersion 5

Author: marijnh

test/lint.js

@@ -3,7 +3,8 @@ var blint = require("blint");
 ["mode", "lib", "addon", "keymap"].forEach(function(dir) {
   blint.checkDir(dir, {
     browser: true,
-    allowedGlobals: ["CodeMirror", "define", "test", "requirejs"]
+    allowedGlobals: ["CodeMirror", "define", "test", "requirejs"],
+    ecmaVersion: 5
   });
 });