Moved Padding to Controls - they are the only classes that use it.
More refactoring to get some common behaviour out of controls.
Changed how padding works with.
More work on control layouts and default images.
Changed the standard system icons and associated resource.
Started adding Buttons that are Icons only (and a specific
implementation that is a system Icon).
Updating how system icon buttons are drawn.
Fixed and error with clipping.
Fixed off by one errors while rendering a font.
Fixed some typos in the comments.