More refactoring and fixes for redesign

template/app/Application.js

template/app/controller/Classes.js

template/app/controller/Content.js

template/app/controller/Favorites.js

template/app/controller/Guides.js

template/app/controller/Tabs.js

template/app/view/Viewport.js

template/app/view/cls/Index.js

template/app/view/examples/Index.js

template/app/view/examples/Tree.js

template/app/view/guides/Index.js

template/app/view/tree/Tree.js