From Axel: a few improvements for TView3D's doc.
From Axel:
a few improvements for TView3D's doc.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@23816 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root