to follow the namespace conventions and make it clear that they are
drivers and not dlls.
Moved the graphics driver configuration to HKLM\Software\Wine\Drivers.
debug channels definitions.
Made win32 the default type for spec files.
Ignore C compiler in winebuild so we can simply pass it $(DEFS).
Removed type win32 and debug_channels from spec files.
Fixed winebuild to always generate correct C identifiers (reported by
Vincent Béron).