enhancement - improved the chantype and chanunit support for 4d/bti systems


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8673 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0
automatically synchronized identical files to revision 8673

git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8674 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0