Updated topic tree data with latest feed and added all domains to allowed list. Added images and styles for new domains. Updated main page layout to not scroll logo and render better in different screen configuration.
Fixed back button and title layout issue for video page in portrait mode.
Changed "Feedback" option in settings charm to "Help Center" and updated to use new URL. Also fixed a bug where the external link was opening only once and showing empty flyout afterwards.
Merge pull request #113 from anprak/win8.0

A few improvements and update for new help center URL.