Add rspec to rake
Basic test
Test for spliting list of rolls into frame chunks
Add a crude but working split_rolls_to_frames
Change score to work on variable number of rolls
Pass array to scores method
Identify strikes and spares in a frame
Add an extra roll to the score for "spare" frames
Add extra 2 rolls to the score for "strike" frames
Add test for 3 strikes in a row
Test strike or spare in the 10th frame

It shoudn't add score from extra rolls
Frame 10 doesn't take score from extra rolls
Add tests for scoring entire games
Add left over rolls to a frame