Creates a list of races and puts them on a page

Complete with some tests
Adds a date to the race table
Adds the date and orders by date desc

Groups the results into years as well
Adds the correct url link for race results
Adds a function to return the results of a race
Adds a list of runners to the races.

Only a couple of runners available for the cake race. Also adds a
function to convert from seconds to a more human readable time. Very
specific to the cake race as of yet