Added UserThemes-class, -migration & -seed. Added UserThemesController & ActionLink in _Layout.
Fixed small bug in UserThemeController.
Updated UserInfo with ThemeId. Now theme is loaded, user specific, from the db.
Added Carousel & Btn to UserTheme. Fixed some style in Site.css. Updated seed for UserTheme.
User Themes is complete. Loged in user can switch themes from carousel. Btn is under options-menu.
Fixed bug with forced login. Tried to create UserInfo at Registration. Still don't work.