Added comparator class to sort Attempts by score.
Also started a test class for it
Merged from repo
Changed class and test to sort in descending order.
CloseReport now states how many games are active (if any)
Updated javadoc to say that attempt list is in descending order.
Updated to include add/get attempts list.
Added methods and test for add/get list of attempts.
Updated javadoc
Added code to add a sorted attempts list to the close report.
merging local changes
merging local changes