Salvaging what I can from the failed experiment, read more

I'm salvaging the changes to AccountManager and CharacterManager that
don't break the build too badly. This won't build, but it'll be easier to
rectify.

Also, I've reduced the length of the manager's method names, and renamed
sql_utility.*pp to sql_tools.*pp

server/accounts/account_manager.hpp

@@ -27,21 +27,25 @@
 
 #include "sqlite3/sqlite3.h"
 
+#include <functional>
 #include <map>
 
 class AccountManager : public Singleton<AccountManager> {
 public:
 	//public access methods
-	int CreateAccount(std::string username, int clientIndex);
-	int LoadAccount(std::string username, int clientIndex);
-	int SaveAccount(int uid);
-	void UnloadAccount(int uid);
-	void DeleteAccount(int uid);
+	int Create(std::string username, int clientIndex);
+	int Load(std::string username, int clientIndex);
+	int Save(int uid);
+	void Unload(int uid);
+	void Delete(int uid);
 
 	void UnloadAll();
+	void UnloadIf(std::function<bool(std::pair<int, AccountData>)> fn);
 
 	//accessors and mutators
-	AccountData* GetAccount(int uid);
+	AccountData* Get(int uid);
+	int GetLoadedCount();
+	int GetTotalCount();
 	std::map<int, AccountData>* GetContainer();
 
 	sqlite3* SetDatabase(sqlite3* db);