UI polish, bug fixes, and smoother movement

No new features this week but I went over older work and cleaned up some bugs.  I improved movement to make it smoother, allowing you to turn and look while moved between grid spaces. I added the Ranged skill to the trainable skills which was forgotten.  And I updated the UI screens to use the same scrollable bordered window as the Shop UI.  There is also a new 'Character' screen to show you all your attributes and skills.