Update devDependencies.

.travis.yml

@@ -17,7 +17,6 @@ before_install:
 install:
   - bundle install --deployment --jobs=1
   - cp grunt/npm-shrinkwrap.json ./
-  - npm install -g grunt-cli
   - npm install
 cache:
   directories:

package.json

@@ -32,7 +32,7 @@
   "devDependencies": {
     "btoa": "~1.1.2",
     "glob": "~7.0.3",
-    "grunt": "~0.4.5",
+    "grunt": "~1.0.1",
     "grunt-autoprefixer": "~3.0.4",
     "grunt-contrib-clean": "~1.0.0",
     "grunt-contrib-compress": "~1.3.0",
@@ -53,7 +53,7 @@
     "grunt-html": "~8.0.1",
     "grunt-jekyll": "~0.4.4",
     "grunt-jscs": "~3.0.1",
-    "grunt-saucelabs": "~8.6.2",
+    "grunt-saucelabs": "~9.0.0",
     "load-grunt-tasks": "~3.5.0",
     "markdown-it": "^7.0.0",
     "shelljs": "^0.7.0",