Add time-grunt plugin.

Gruntfile.js

@@ -250,6 +250,7 @@ module.exports = function(grunt) {
 
   // Load the plugins
   require('load-grunt-tasks')(grunt, {scope: 'devDependencies'});
+  require('time-grunt')(grunt);
 
   // Default task(s).
   grunt.registerTask('dist-css', ['sass', 'csscomb', 'cssmin']);

package.json

@@ -41,7 +41,8 @@
     "grunt-jekyll": "~0.4.1",
     "grunt-jscs-checker": "~0.4.0",
     "grunt-sed": "~0.1.1",
-    "load-grunt-tasks": "~0.4.0"
+    "load-grunt-tasks": "~0.4.0",
+    "time-grunt": "~0.2.10"
   },
   "engines": {
     "node": "~0.10.1"