Fix in overlapping OBBs

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9637 b7f1a160-662a-0410-a6d8-bea165342f16
clean examples

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9638 b7f1a160-662a-0410-a6d8-bea165342f16
Reverting some changes in BaseIntTool.h

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9639 b7f1a160-662a-0410-a6d8-bea165342f16