Update the code to use V2 of the API

[sebastiaanspeck]

The API has updated to V2: www.football-data.org/documentation/api#changelog

I think its useful for the code to also use V2 of the API

[peterMuriuki]

trying to work on a working version forked here. I am still not quite conversant with programming and am kind of iffy about what i built, so please have a look if you have the time.