If two nodes refer to the same xmlNodePtr don't return same object.

Correct some return values.

- frames are cached after each thread stops execution
- reimplemented backtrace on top of this

the selected pixel format lacks full hardware acceleration and only a
few parts are accelerated. So don't always set it but only if the X
server actually reports that the selected pixel format is not fully
accelerated.

name instead of a NULL pointer.

& locals in dbghelp.
Modified winedbg accordingly.

Make two functions available to all files.
Make format_string() const correct.

between UNIX and Windows. Based on a patch by Mike Hearn.

symbol-type (symt) which links both to arguments' type and to function
prototype
- added this new type to dbghelp
- implemented its use in winedbg

32 bit one.

the d3d8 demos from www.codesampler.com working.

space, blank and cntrl exceptions and fixing the type given to
characters in the "Zl" and "Zp" classes.

Don't increment the szFile pointer since we removed the BOM earlier
and it will cause the first real character of the INI file to be
skipped.

Remove useless hwndParent variable.

problem with the solid node bsp demo from www.codesampler.com as well
as a lot of blank screens in some other demos.

in other modules.

Improve some trace messages.
Add tests for fopen(), fclose(), _fcloseall().
Stricten some checks of _unlink().

winefile program.