Removed MonsterManager's Singleton status, RoomData now has mgr members

RoomData now has monsterMgr and waypointMgr members, so that it can
compare it's characters to the monster & waypoints, etc.

RoomManager has been updated. It now has a database reference, which is
passed to the monsterMgr of new rooms. The room API also has functions
which expose these managers to lua.

server/rooms/room_manager.cpp

@@ -36,6 +36,9 @@ int RoomManager::Create(std::string roomName, std::string tileset) {
 	newRoom->SetTileset(tileset);
 
 	newRoom->pager.SetLuaState(lua);
+	newRoom->monsterMgr.SetLuaState(lua);
+	newRoom->monsterMgr.SetDatabase(database);
+	newRoom->waypointMgr.SetLuaState(lua);
 
 	//finish the routine
 	return counter++;
@@ -122,3 +125,11 @@ lua_State* RoomManager::SetLuaState(lua_State* L) {
 lua_State* RoomManager::GetLuaState() {
 	return lua;
 }
+
+sqlite3* RoomManager::SetDatabase(sqlite3* db) {
+	return database = db;
+}
+
+sqlite3* RoomManager::GetDatabase() {
+	return database;
+}