enhancement - also test nonlinear optimization with and without optim toolbox


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@9628 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0
enhancement - added clock as channel type for CTF (units are seconds)


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@9629 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0