Some path in the FileRepository contained "//".
A plugin could be loaded several times with a path containing "//" or not (resulting in a different path string comparison).
All path added in the FileRepository are now garanteed without "//".
Note that by manually giving several times the same plugin path written differently would still load several times the plugin.

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9916 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant.pro fixed to match changes made in Cmakelists.txt

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9917 b7f1a160-662a-0410-a6d8-bea165342f16
Compliant: fixing windows linking

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9918 b7f1a160-662a-0410-a6d8-bea165342f16