Merge pull request #353 from skyverge/dependabot/npm_and_yarn/underscore.string-3.3.5

Bump underscore.string from 3.1.1 to 3.3.5

Author: ChaseWiseman

package.json

@@ -31,6 +31,6 @@
     "load-grunt-tasks": "~3.2.0",
     "time-grunt": "~1.2.1",
     "underscore": "~1.8.3",
-    "underscore.string": "~3.1.1"
+    "underscore.string": "~3.3.5"
   }
 }