Changes

* Cellular - the class which defines the cell. It keeps track of the generation, pointer to a world class which defines the dimensions in which the cell exists and a pointer to the rule class which governs the change in the cell on every generation. [[File:cellular_class.png|450px|thumb|left| Cellular Class ]]* World - the class which defines the world, the environment for the cell in which the cell undergoes evolution. The class contains the dimensions for the 2D dimensional matrix where the cell is positioned. [[File:world_class.png|450px|thumb|left|alt| Cellular Class ]]