Kat1task3 and anton update

For some reason i couldnt comment on my push so ill type in what i've done here:
I did this after Kevins changes and they follow Elaine's Comments on our design
1. made the constructor public
2. made FINAL_LIST_SIZE a final var
3. created a new var in ContactList called currentListSize ( I dont know why we need this but we do according to Elaine)
4. Changed x (Contact x = newC Contact) in class ContactList to be called tempContact instead
5. Created a new method in ContactList called getEmailAddress that returns the emailAddress in a String ( i guess we had forgotten that we needed that)