virtualized restoreWindowContext(), using in AppBasic for mac only
removed #if guards for boost::asio::io_service on WinRT, it should be possible to support now.
spacing and style fixes
Use override where possible in AppBasic and AppCocoaTouch classes. Made overlapping AppCocoaTouch fullscreen methods virtual.
removed AppCocoaTouch::getElapsedSeconds(), relying on App for this.