added grid
added grid failing test
yea, i know, a failing test should not be committed
added next_generation
initial state
initial state
cell base
cell base
set state
allow cell death
failing neighbor test
neighbor test
refactored state to live or die
refactored state to live or die
working on neighbors
working on neighbors
set specific  neighbors
rule 4 started
rule 4 passing
rule 3 passing