make dynamic model instances public controller properties to ease testing
better differentiate between backend and frontend errors
fix failing CoreSettingsController tests
fix typo
add WasabiAssetHelper to FrontendAppController
streamline expansion of keys to arrays

Keys that use double underscore as separator are now expanded to arrays.
add new backendUnprotectedLink helper method that ignores permissions
use new CHtml::backendUnprotectedLink helper method
add empty check
refactor backend menu processing
move psd assets from webroot/img to Assets/psd directory to disable public access
add browser logos from https://github.com/paulirish/browser-logos
add wasabi logo
add wasabi logo to login view, restructure content
add media upload view for ajax transports
draft: provide upload functionality to handle uploads via jQuery Multi File Upload
several style changes and additions

mainly for multi file upload and support layout