Build: Upgrade load-grunt-tasks to 3.4.0

Ref gh-1670

Author: scottgonzalez

package.json

@@ -65,7 +65,7 @@
 		"grunt-git-authors": "3.1.0",
 		"grunt-html": "6.0.0",
 		"grunt-jscs": "2.1.0",
-		"load-grunt-tasks": "0.3.0",
+		"load-grunt-tasks": "3.4.0",
 		"rimraf": "2.1.4",
 		"testswarm": "1.1.0"
 	},