CGALPlugin: add example scene for MeshGenerationFromImage

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11305 b7f1a160-662a-0410-a6d8-bea165342f16
fix PlaneForceField visu: use draw boolean to draw or not

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11306 b7f1a160-662a-0410-a6d8-bea165342f16
Remove SceneColladaLoader useFlexible option (SkinningMapping can now be used with Compliant solver).
Remove the FixedConstraint creation of SceneColladaLoader when an object has an armature.  
Fix: projectResponse of SkeletalMotionConstraint

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11307 b7f1a160-662a-0410-a6d8-bea165342f16
Fix: restore useFlexible option

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11308 b7f1a160-662a-0410-a6d8-bea165342f16