Changes

*1009/09/2012: Got into group and finished the display function (Assignment 1).*10/1009/2012: Finished the definitions for each key in the edit function (Assignment 1).

*10/1109/2012: Met early and completed the edit function.

*1011/1109/2012: Contributed question about macros/pre-processors and whether string substitution is possible.

*1012/1209/2012: Debugged most of the code and got an executable file.

*1012/1209/2012: Started debugging (Assignment 1).