Jeck - [JGE recompile needed] Shop cleanup, Interface enhancements.

Added basic transition system that works with GameApp's phases. Currently does a fade-out between elements, which works well in some places and not-so-well in others. We'll definitely want to think about where and where not to use it... they'd work a lot better if we could spawn a thread to handle loading the next state while transitioning.

Also cleaned up the shop a bit, so it uses ReadButton() instead of GetButtonClick()-- hence the slight change to JGE. Added a tiled image for the task board, which loads conservatively (I tried 128x128, but it didn't look as good).

projects/mtg/include/ShopItem.h

@@ -31,6 +31,7 @@ class ShopItem:public JGuiObject{
   float mTargetScale;
   hgeDistortionMesh* mesh;
 
+  void updateThumb();
 
  public:
   int nameCount;
@@ -83,6 +84,7 @@ class ShopItems:public JGuiController,public JGuiListener{
   void Add(char * text, JQuad * quad, JQuad * thumb,int _price);
   void pricedialog(int id, int mode=1);
   virtual void ButtonPressed(int controllerId, int controlId);
+  bool CheckUserInput(u32 key);
   void savePriceList();
   void saveAll();
   static float _x1[],_y1[],_x2[],_y2[],_x3[],_y3[],_x4[],_y4[];