2.0.6

· Now the countdown of powerups will be shown along with its nametag. (Togglable)
· Now you can toggle if nametag of powerup gets rendered with shadow. (Togglable, disabled by default.)
· Added a new catalog for powerup related features in config GUI.
· Fixed a bug that your client might be no response when a round starts.
· Fixed a bug that the timers of r74 and r76 were wrong.
· Fixed a bug that the timers from rounds which only have a 5s wave were rendered to 00:5 instead of 00:05.
· Fixed a bug that powerups displaying on screen didn't arrange from top to bottom according to remaining time.
· Fixed a bug that countdown of powerups would be reset if the powerup expired naturally.