bugfix - resolved issue with inconsistent units for the beamformer_extended tutorial, see http://bugzilla.fcdonders.nl/show_bug.cgi?id=2387. I also added two point-in-time copies of the relevant tutorials as test scripts for future reference


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8836 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0
automatically synchronized identical files to revision 8836

git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8837 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0