Update dependencies.

package.json

@@ -33,7 +33,7 @@
     "btoa": "~1.1.1",
     "canonical-json": "~0.0.4",
     "css-flip": "~0.3.0",
-    "grunt": "~0.4.2",
+    "grunt": "~0.4.3",
     "grunt-autoprefixer": "~0.7.2",
     "grunt-banner": "~0.2.1",
     "grunt-contrib-clean": "~0.5.0",
@@ -43,18 +43,18 @@
     "grunt-contrib-csslint": "~0.2.0",
     "grunt-contrib-cssmin": "~0.9.0",
     "grunt-contrib-jade": "~0.11.0",
-    "grunt-contrib-jshint": "~0.8.0",
+    "grunt-contrib-jshint": "~0.9.0",
     "grunt-contrib-less": "~0.10.0",
     "grunt-contrib-qunit": "~0.4.0",
     "grunt-contrib-uglify": "~0.4.0",
-    "grunt-contrib-watch": "~0.5.3",
+    "grunt-contrib-watch": "~0.6.0",
     "grunt-csscomb": "~2.0.1",
     "grunt-css-flip": "^0.1.0",
     "grunt-exec": "~0.4.5",
     "grunt-html-validation": "~0.1.13",
     "grunt-jekyll": "~0.4.1",
     "grunt-jscs-checker": "~0.4.0",
-    "grunt-saucelabs": "~5.0.1",
+    "grunt-saucelabs": "~5.1.0",
     "grunt-sed": "~0.1.1",
     "load-grunt-tasks": "~0.4.0",
     "markdown": "~0.5.0",