bugfix - fixed a problem in reading electrode config &  fiducials coordinates, as wel as reading scalp, skull, csf and brain surfaces. Added option to compute individual leadfield based on BESA MRI input on a specific dipole position. also see bugzilla entry #2336 (http://bugzilla.fcdonders.nl/show_bug.cgi?id=2336)

git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@9104 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0