enhancement - partially reverted the change in revision 8680, in which ft_checkdata/hascoordsys was introduced. I noticed that quite a lot of test scripts use cfg.coordsys, and hence probably also a lot of user scripts. Furthermore, coordsys is not required in sourceplot, but will only be used if present.


git-svn-id: svn+ssh://svn.fcdonders.nl/home/svnroot/fieldtrip/trunk@8690 0cf7c7f0-3615-4144-b4e6-68da3bce3cd0