Fix some IE issues that resulted in JavaScript errors

- Internet Explorer does not recognize custom tags until they are manually
  created using document.createElement()
- Iterating over an object's elements resulted in method names being
  included in the key set where the filter was expecting property names
  only
Fix navigation bar

Make the navigation bar work on both IE and other browsers
Merge branch 'InternetExplorer8Fix' of https://github.com/schnappi/scenarioo into develop

Conflicts:
	scenarioo-client/Gruntfile.js
	scenarioo-client/app/index.html
	scenarioo-client/app/styles/scenarioo.less
	scenarioo-client/app/views/navigation.html