refactored to give frame knowledge of next frame. Need to change strike logic to look in different frames
can score perfect game - final frame passing some tests
scoring now good. Game looks complete. Some logic awkward
setup basic roll properties - SpecRunner problems
roll knows about next roll, passes other tests
next roll test passing
refactor frame with roll. frame tests passing
all tests passing. Refactor in progress - some frame functions done
more refactoring. tests still pass
refactoring almost complete - problem with checking second bonus ball of last of 3 strikes
frame refactor is good
game scoring refactored using reduce