Enable new mesa on dfly.


git-svn-id: https://trillian.chruetertee.ch/svn/ports/trunk@1537 058c260c-8361-11dd-a0ac-aa2bafec7d09
Update to 10.3.1.


git-svn-id: https://trillian.chruetertee.ch/svn/ports/trunk@1539 058c260c-8361-11dd-a0ac-aa2bafec7d09