Board is not created to the initial orientation if board only uses the other orientation.
Resolution conversion does not fire on small resolution changes since those can constantly occur on same device.
Images are stored in memory with resolution defined by image settings (ImageDrawing). Image reloading is forced when changing image size settings. Context is now being passed as a parameter (like Google does it).
Menu icons are loaded to memory with required icon resolution.
Moved ImageDrawing to common tools.