Refactoring

[domhnallmorr]

Issue created to keep track on any refactoring ideas;

Model

Need separate class for race/practice session session. Possibly have a "Race" class and a "Practice" class which inherit from a "Session" class for common functionality.
Maybe make the standings_df as a separate class??

commentary_to_process, the pop method is being called within the controller to remove old messages, should probably put that back into the model itself.

View

Need better handling for lap time formatting. If lap time has not been set, should handle for that in the same function that formats time in min:ss:decimal. Also need to be consistency from model in whether a time has been set (i.e. None or "-" consistantly in the standings_df).