add screenshots directory

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9480 b7f1a160-662a-0410-a6d8-bea165342f16
Add new parameter to handle scrolling of images from an external process - Work in Progress

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9481 b7f1a160-662a-0410-a6d8-bea165342f16
fixed IdentityMapping::getJs() while mapping a particle in a (rigid) frame

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9482 b7f1a160-662a-0410-a6d8-bea165342f16