Rewritten most of the frontend to use Redux.

Also, lots of code cleanup, especially in frontend.

tests_web_app/test_get_api_v1_player_game.py

@@ -86,6 +86,8 @@ class Test_GetAPIv1Players(BaseQ3StatsWebAppTestCase):
             rsp = self.client.get('/api/v1/players/Player 1/game/game1')
             assert rsp.status_code == 200
 
+            assert rsp.json['game'] == 'game1'
+            assert rsp.json['player'] == 'Player 1'
             assert rsp.json['map'] == 'Q3DM7'
             assert rsp.json['items'] == {'YA': 1}