Tiling Windows

One of my short term goals has been completed, and that is the tiling of the windows. So right now, the user has the ability to create new windows and fenestra will automatically tile them onto the screen. The user can also change which window is the "head", essentially the head is the most important window (not always), and the user can change the focus to any window. Unfortunately, closing windows isn't as simple, if you close a window, fenestra should crash (feature not a bug...). Next week I should finish up the tiling features and get into adding workspaces and toolbars.