cmake: fix runSOFA icon on MacOS

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9734 b7f1a160-662a-0410-a6d8-bea165342f16
SofaPython: added compositeObject.py example scene (multimapping)

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9735 b7f1a160-662a-0410-a6d8-bea165342f16
Flexible: cleaning mass for deformable frames (affine & quadratic). Mass for rigid frames has problems.

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9736 b7f1a160-662a-0410-a6d8-bea165342f16
Tutorials: cleaning relative to bgl removal

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9737 b7f1a160-662a-0410-a6d8-bea165342f16
Optimization in SparseLDLSolvers to process the symbolic factorization only when it is nevessary

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9738 b7f1a160-662a-0410-a6d8-bea165342f16