Update dependencies.

package.json

@@ -30,34 +30,34 @@
     "url": "https://github.com/twbs/bootstrap/blob/master/LICENSE"
   },
   "devDependencies": {
-    "btoa": "~1.1.1",
+    "btoa": "~1.1.2",
     "canonical-json": "~0.0.4",
-    "glob": "^4.0.0",
-    "grunt": "~0.4.4",
-    "grunt-autoprefixer": "~0.7.2",
-    "grunt-banner": "~0.2.2",
+    "glob": "~4.0.2",
+    "grunt": "~0.4.5",
+    "grunt-autoprefixer": "~0.7.5",
+    "grunt-banner": "~0.2.3",
     "grunt-contrib-clean": "~0.5.0",
     "grunt-contrib-concat": "~0.4.0",
     "grunt-contrib-connect": "~0.8.0",
     "grunt-contrib-copy": "~0.5.0",
     "grunt-contrib-csslint": "~0.2.0",
-    "grunt-contrib-cssmin": "~0.9.0",
+    "grunt-contrib-cssmin": "~0.10.0",
     "grunt-contrib-jade": "~0.12.0",
     "grunt-contrib-jshint": "~0.10.0",
-    "grunt-contrib-less": "~0.11.0",
+    "grunt-contrib-less": "~0.11.2",
     "grunt-contrib-qunit": "~0.5.1",
-    "grunt-contrib-uglify": "~0.4.0",
+    "grunt-contrib-uglify": "~0.5.0",
     "grunt-contrib-watch": "~0.6.1",
     "grunt-csscomb": "~2.0.1",
     "grunt-exec": "~0.4.5",
-    "grunt-html-validation": "~0.1.15",
-    "grunt-jekyll": "~0.4.1",
-    "grunt-jscs-checker": "~0.4.3",
+    "grunt-html-validation": "~0.1.18",
+    "grunt-jekyll": "~0.4.2",
+    "grunt-jscs-checker": "~0.4.4",
     "grunt-saucelabs": "~8.0.2",
     "grunt-sed": "~0.1.1",
     "load-grunt-tasks": "~0.5.0",
     "markdown": "~0.5.0",
-    "time-grunt": "~0.3.1"
+    "time-grunt": "~0.3.2"
   },
   "engines": {
     "node": "~0.10.1"