fixed dialog box to release key binding when closing.
modified BattleScene to display the battleboard properly
removed the Objects list and instead used XNA's GameComponentCollection. the game compiles, but immediately crashes. a lot of work is still needed to get it semi-working. i commented out large blocks of code where i plan to completely rebuild a section using Nuclex's GuiManager tools.
initialized objects during construction so the graphics device exists
fixed the draw order so that sprites render properly in the overworld