image plugin: update

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9859 b7f1a160-662a-0410-a6d8-bea165342f16
SofaHAPI: Updated example to run with current Sofa version

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9860 b7f1a160-662a-0410-a6d8-bea165342f16
Sensable plugin: NewOmniDriver computes force feedback for multiple omnis

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9861 b7f1a160-662a-0410-a6d8-bea165342f16
Sensable plugin: Added example using a different method of setting up a scene

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9862 b7f1a160-662a-0410-a6d8-bea165342f16
FIX: eigen::noalias strange behavior. Removing every occurences of "v.noalias() += w" with "v.noalias = v + w"

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9863 b7f1a160-662a-0410-a6d8-bea165342f16