Added method to remove X viewControllers while simultaneously pushing a new view controller.
Merge branch 'rx-integration' of github.com:walmartlabs-wmusiphone/ios-shared into rx-integration
Fixed problem where passing a nil controller into removePreviousViewControllers:pushViewController: would crash.
Modified the search behavior for loadFromStoryboard to be a bit more thorough in finding what you're looking for.
Changed search pattern for loadFromStoryboard.  Renamed loadFromStoryboard: to loadFromStoryboardNamed:
Merge pull request #40 from walmartlabs-wmusiphone/rx-integration

Misc updates around loadFromStoryboard, and viewController removal from the navstack.