Erwan - cache fixes - Code review highly appreciated, please criticize my code!

- fix issue 65 (quads when no image  load slowly in shop/deck editor)
- Possibly fix issue 92, please let me know if it reproduces
- Fix issue 97 (Deck editor: weird behavior of deck display)
- Fix issue 39 - please verify
- Issue 56 can probably be closed as well
- Fix issue 86

projects/mtg/include/GameOptions.h

@@ -60,7 +60,6 @@ public:
     MOMIR_MODE_UNLOCKED,
     EVILTWIN_MODE_UNLOCKED,
     RANDOMDECK_MODE_UNLOCKED,    
-    CACHESIZE,
     //Theme metrics. These will be phased out fairly soon.
     THEME_METRICS, //Start of theme metrics.
     LOADING_TC = THEME_METRICS,
@@ -151,7 +150,7 @@ public:
   string str;
   //All calls to asColor should include a fallback color for people without a theme.
   PIXEL_TYPE asColor(PIXEL_TYPE fallback = ARGB(255,255,255,255));
-  bool isDefault(); //Returns true when  number is 0 abd string is "" or "default"
+  bool isDefault(); //Returns true when  number is 0 abd string is "" or "Default"
   GameOption(int value = 0);
   GameOption(string);
   GameOption(int, string);