Some of the ttk widgets steal focus from the canvas and shapes can't be moved/resized unless the canvas has focus. The canvases now gets focus back when clicked and most of the ttk widgets give it back as well. This closes #36.
The shot marker is now redrawn when the marker radius is changed, thus closing #41.
The new version of OpenCV doesn't let ShootOFF close on Windows unless the VideoCapture is released, which we now do on close.
Reduced the number of pixels averaged to determine laser color, which closes #47 (this mitigates the problem, but doesn't eliminate it. shot detection will probably need to use the Hough transform idea to completely solve this problem)
The selected shot in the shot timer list is now moved to the top of the z-stack to ensure it is visible even if other shots cover it up because they are newer. This closes #48
Merge pull request #1 from phrack/master

Merging changes from Master Phrack (I hope)