Harmonize syntax across all files

controllers/default.py

controllers/game.py

controllers/player.py

controllers/room.py

models/b_dummy.py

models/c_meta.py

models/f_room.py

models/z_schedule.py

modules/cookie_util.py

modules/http_util.py

modules/misc_util.py

modules/parameter_util.py

modules/room_util.py

private/appconfig.ini

static/css/base.css

static/css/client.css

static/css/login.css

static/game/bootstrap/renderer.css

static/game/bootstrap/renderer.js

static/js/analytics.min.js