Merge branch 'master' of https://github.com/less/less.js

Author: lukeapage

.travis.yml

@@ -5,7 +5,6 @@ node_js:
 install:
   - npm install -g grunt-cli
   - npm install
-env:
 env:
   global:
     - secure: TrNVruWYaUK5ALga1y7wRY+MLjWJECUSCsBmKW5EUmIevOUxqHWu7M89FANKxstEeFRRAGH3QJbloRxnzIgh0U0ah5npE9XA1bYXGO5khoXeIyk7pNRfjIo8aEnJH1Vp8vWA6J6ovxdJ7lCFKEGvGKxGde50knVl7KFVVULlX2U=

lib/less-browser/utils.js

@@ -13,7 +13,10 @@ module.exports = {
                 if (opt === "env" || opt === "dumpLineNumbers" || opt === "rootpath" || opt === "errorReporting") {
                     options[opt] = tag.dataset[opt];
                 } else {
-                    options[opt] = JSON.parse(tag.dataset[opt]);
+                    try {
+                        options[opt] = JSON.parse(tag.dataset[opt]);
+                    }
+                    catch(_) {}
                 }
             }
         }