This patch adds the RSaveTitledImage() function to the WRaster lib
to be able to save file on disk either as a PNG or a JPEG file.
Those two formats depends on optional external libs.
The function can take an optional title/comment which will
be save inside the file.
The WRaster lib and header versions are bumped.
The header "wraster.h" needs different behaviour depending on whether the
support for X Shared Memory extension was enabled or not; but the related
macro USE_XSHM is defined by WindowMaker's configure. After this header
have been installed, the macro is no more useable.
This patch makes the "wraster.h" a generated file, so it will be different
depending on USE_XSHM, but will not make use of the macro itself.
Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
