enhancement: improving speed of ft_artifact_zvalue (ft_fetch_data can now be instructed to *not* call ft_checkdata for its input data)


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@9604 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0
automatically synchronized identical files to revision 9604

git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@9605 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0