PlatformImage: Fix mirrored 90 and 270 transforms for good.

Both were still broken, and Dawn of Sorrow's double jump was lucky
enough to have the mirrored 90 rotation fit just well enough into
a sprite on the sheet that looked correct.

src/org/recompile/mobile/PlatformImage.java

@@ -379,7 +379,7 @@ public static final BufferedImage transformImage(final BufferedImage image, fina
 					int targetRow = height - 1 - y;
 					for (int x = 0; x < width; x++) 
 					{
-						targetData[x * height + targetRow] = sourceData[y * width + x];
+						targetData[x * height + targetRow] = sourceData[y * width + (width - 1 - x)];
 					}
 				}
 				//dumpImage(image, "");
@@ -400,7 +400,7 @@ public static final BufferedImage transformImage(final BufferedImage image, fina
 				{
 					for (int x = 0; x < width; x++) 
 					{
-						targetData[(width - 1 - x) * height + y] = sourceData[y * width + x];
+						targetData[(width - 1 - x) * height + y] = sourceData[y * width + (width - 1 - x)];
 					}
 				}
 				//dumpImage(image, "");