typo

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@10608 b7f1a160-662a-0410-a6d8-bea165342f16
Updated CGoGN

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@10609 b7f1a160-662a-0410-a6d8-bea165342f16
added an old report on the validation of TetrahedronFEMForceField

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@10610 b7f1a160-662a-0410-a6d8-bea165342f16
add minimal doc

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@10611 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant:
- adding DifferenceFromTargetMapping
- adding an "inverted" param to OffsetMapping and DifferenceFromTargetMapping (to choose the direction of an associated uniteral constraint)
- moving friction examples to examples/contact subdir
- adding stops.scn example (joint stop on a sliding constraint between Vec3) TODO the same with rigid + angular stops


git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@10612 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant: removing UnilateralConstraint::positive (always keeping positive forces)

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@10613 b7f1a160-662a-0410-a6d8-bea165342f16