[GCC-XML] Adding support for gcc-4.9.0?

[o.kurz at gmx.de]

Hello gccxml -mailing-list,

GCC 4.9 is out, which I actually noticed since my Arch Linux upgraded and 
gccxml would not work anymore as the new version of gcc was installed 
seemingly not yet supported in gccxml.

I did never fully understand why gccxml needs a gcc-version specific directory 
but what worked for me as a quick-fix to copy
/usr/share/gccxml-0.9/GCC/4.8/
to
/usr/share/gccxml-0.9/GCC/4.9/
and my build process using gccxml works again.

Is this the right way to do it?
Would you consider adding the support or should I just publish the directory 
copy as a pull-request for the github repo?

Kind regards,
Oliver Kurz