Created flags for optional loading of players, games, and stats in the Leauge method add_teams().y
Added default values for the add_games() flags.
Altered the add_players function so that it will read from a file.
Changed the League method so that it takes a filename input. This is done for testing purposes.
Updated the description of the add_teams() method.
Updated the server to reflect the changes to add_teams().
Updated the add_games() method to optionally take another filename. This was done for testing purposes.