Use underscore .each in utilityService

* There were changes to Angular's forEach function in v1.2.21 that causes
* the third "context" argument to be undefined. This will be resolved in a
* future Angular release.
* Until then, create an underscore service for DI and use underscore's .each function.
Merge pull request #63 from ethanhann/angular_for_each_issue

Use underscore .each in utilityService