enhancement: in interactive mode, singleplot now copies over the ylim to the zlim of topoplot


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@7693 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0
bugfix - corrected parsing of cfg.dataname if it is a cell (similar as being done in topoplot_common.m)

git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@7694 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0
Merge branch 'master' of github.com:fieldtrip/fieldtrip