enhancement and bugfix - fixed a problem in the side branches (like ft_prepare_headmodel), which would not always attach correctly as parent to ft_sourceanalysis. Added graphviz as output format.


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@10017 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0