Implemented DisconnectedScreen, and removed CharacterMap

Project also builds, since I went through and adjusted it. It's hacky
right now, but I just want to make sure it worked. I'll give it another
pass before merging into develop.

client/scene_list.hpp

@@ -34,8 +34,7 @@ enum class SceneList {
 	OPTIONSMENU,
 	LOBBYMENU,
 	INWORLD,
-	INCOMBAT,
-	CLEANUP,
+	DISCONNECTEDSCREEN,
 };
 
 #endif