Implemented SharedParameters system in the client (read more)

Here are more tweaks:
* InWorld's quit event now exits to the main menu, bypassing a relayed disconnect message
* InWorld's disconnect hander no longer throws exceptions (dropped creation packet bugfix)
* CombatData's internals now point to std::pair objects
* Enemies are stored in a global list

client/client_application.hpp

@@ -1,4 +1,4 @@
-/* Copyright: (c) Kayne Ruse 2013
+/* Copyright: (c) Kayne Ruse 2013, 2014
  * 
  * This software is provided 'as-is', without any express or implied
  * warranty. In no event will the authors be held liable for any damages
@@ -25,6 +25,7 @@
 #include "scene_list.hpp"
 #include "base_scene.hpp"
 
+#include "shared_parameters.hpp"
 #include "config_utility.hpp"
 #include "udp_network_utility.hpp"
 
@@ -47,9 +48,7 @@ private:
 	//shared parameters
 	ConfigUtility config;
 	UDPNetworkUtility network;
-	int clientIndex = -1;
-	int accountIndex = -1;
-	int characterIndex = -1;
+	SharedParameters params;
 };
 
 #endif