- New plotting option SURF7 implemented as requested here:   http://root.cern.ch/phpBB2/viewtopic.php?t=9369&highlight=contour   It is like SURF3 but inverted ie" the surface is drawn with color   and the contour with lines. - Update the doc.
- New plotting option SURF7 implemented as requested here:
  http://root.cern.ch/phpBB2/viewtopic.php?t=9369&highlight=contour
  It is like SURF3 but inverted ie" the surface is drawn with color
  and the contour with lines.
- Update the doc.


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@30946 27541ba8-7e3a-0410-8455-c3a389f83636

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