Image: fix manual set of transform of container

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11217 b7f1a160-662a-0410-a6d8-bea165342f16
MINOR 
fix : viewer background color
doc addition : setting tools
some remove re-order warnings


git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11218 b7f1a160-662a-0410-a6d8-bea165342f16
fix python syntax

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11219 b7f1a160-662a-0410-a6d8-bea165342f16
Fix sofa no opengl compilation.

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@11220 b7f1a160-662a-0410-a6d8-bea165342f16