Sofa compilation fix under SOFA_NO_OPENGL.

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9749 b7f1a160-662a-0410-a6d8-bea165342f16
DAGNode: fixed bottom-up processing: update descendency and check from removal

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9750 b7f1a160-662a-0410-a6d8-bea165342f16
fixed warnings

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9751 b7f1a160-662a-0410-a6d8-bea165342f16
Collision: cleaning-up a bit (regarding float/double/SReal) + fixing MeshNewProximity::lineVsLine normal

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9752 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant: fixed compilation on gcc-4.4

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9753 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant: added line by line stabilizer

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9754 b7f1a160-662a-0410-a6d8-bea165342f16