Adjusted indentation
Refactored the life tests to check for (non-)existence of a single cell in next generation
Implement deadNeighborsOfAliveCells
Merge pull request #7 from jeffreyfultonca/deadNeighborsOfAliveCellsSolution

Dead neighbors of alive cells solution
Renamed to deadNeighboringCellsOfAliveCells, made sorting not required with new assertion library ( chai ).
Update readme regarding Chai rather than assert