Added a few display options, improvements in Menu class and other fixes. - Added Display::setSize method to dynamically resize the display. - Added a 'resizeable' argument in the display constructor, to control whether the display will allow the user to resize it. - Made the display instance available from the game instance, which now is the recommended way to access the display object. - Renamed Font::getFontHeight to Font::getHeight. - Now the Menu class can be vertically scrolled. Its cursor can also be wrapped around as well. - Fixed Menu class entries' text incorrectly exceeding menu width. Also fixed an incorrect internal behavior. - Fixed Image::drawEllipse incorrect radii behavior on the SFML 1.6 adapter. (Finally!)