add problem description to README
.rvmrc file for those who like it
using minitest for testing
rake task for convenient testing
test setup and a really simple test to make sure setup works
use trollop to make command line option parsing easy
have it read input in from a file for easier testing/use
ensure that the ball count is between 27 and 127
refactor tracking of ball counts
simplify things: don't make the ball clock class responsible for a file
use lambda keyword instead of stabby lambda for clarity
create a tick method that takes a clock state and returns the next clock state
got the rules working in the tick method, tests pass
move the tick method into ball_cycle_length_for_count
update the README