Worked these changes into the client & server (read more)

The changes were fairly easy, and I was actually able to find and fix an
out-of-sequence bug: The destructors for the AccountManager and the
CharacterManager were using SQL code after the call to SQLite3_close_v2(),
so I added and called UnloadAll() for both of them.

server/account_manager.hpp

@@ -30,8 +30,8 @@
 
 class AccountManager {
 public:
-	AccountManager();
-	~AccountManager();
+	AccountManager() = default;
+	~AccountManager() { UnloadAll(); };
 
 	//public access methods
 	int CreateAccount(std::string username, int clientIndex);
@@ -40,6 +40,8 @@ public:
 	void UnloadAccount(int uid);
 	void DeleteAccount(int uid);
 
+	void UnloadAll();
+
 	//accessors and mutators
 	AccountData* GetAccount(int uid);
 	std::map<int, AccountData>* GetContainer();