Code cleanup and Updates

- Added function to ActionLog class that compares two TextModifications
to determine which one is more recent.
- Added framework for Unroll/Reroll actions. Not yet implemented.
- Fixed initialization of TextModifcation timestamp to include hour,
minute, and second
- Added Reset and CalculateRange methods to ViewController class to
clean up code
- Removed commented out code throughout project that no longer needs to
be saved.