siginfo.si_code uses the lower 16bit for the type of the exception.

  internal routines.
- Fix problem in _SetIconSpacing found by recent change.
- Add initial support for correct icon sizing.
- A few extra traces.

GDIRealizePalette.

structure.

Currently it removes trailing white space from the .[ch] files.

- remove useless FIXMEs

values.

items or max items (whichever is less).

(based on a patch by Jon Griffiths).

portability.

- Add new function to the x11drv to get clipboard format names of
  externally registered formats.
- When a clipboard format is registered we should pass the global atom
  value as the format identifier.
- Clipboard format name should be treated as case insensitive.
- Serialize metafile bits when requested via a clipboard selection.
- Return format ids for native formats when mapping from properties.

portability stuff.
More portable printf formats for 64-bit types.