bugfix: after using multi/singleplotER with multiple input arguments and interactive mode, now the interactively produced topoplots show the input argument's name in the figure window title


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8716 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0