* Replaced the get-players-attribute function with equivalent Clojure supplied functions.
* Added a convert-gameClock function to be used by the backend, that expects integer value gameClocks.
* Added a get-gameEvents function that accepts a gameId and 0..2 gameClocks. Respectively, this will get all events, events since time, or events since a start time up to (exclusive) an end time.
Merge remote-tracking branch 'origin/backend'