cleaning up text surfaces upon Engine deletion

git-svn-id: svn://anubis/anaglym/trunk@158 99a6e188-d820-4881-8870-2d33a10e2619

Engine.cc

@@ -128,6 +128,12 @@ Engine::~Engine()
     {
         delete it->second;
     }
+    for (std::map<int, SDL_Surface *>::iterator it = m_texts.begin();
+         it != m_texts.end();
+         it++)
+    {
+        SDL_FreeSurface(it->second);
+    }
     delete m_fileLoader;
     if (m_font != NULL)
         TTF_CloseFont(m_font);