Cleaning some stuff in collision.

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9587 b7f1a160-662a-0410-a6d8-bea165342f16
Add: bool Simulation::isDirectedAcyclicGraph()
Add: macro SOFA_CLASS_METHOD useful for debug tracing (warning a lot of recompilation)
fixed warnings
Compliant: small clean-up

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9588 b7f1a160-662a-0410-a6d8-bea165342f16
ADD: cmake test projects are not loaded if the user did not check SOFA-MISC_TESTS option

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9589 b7f1a160-662a-0410-a6d8-bea165342f16
Add friction contact for OBB and RigidSphereModel.

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9590 b7f1a160-662a-0410-a6d8-bea165342f16
cmake: Added BaseIntTool to SofaBaseCollision

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9591 b7f1a160-662a-0410-a6d8-bea165342f16
FIX: cmake QGLViewer on Windows

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9592 b7f1a160-662a-0410-a6d8-bea165342f16