* refactor ms planner (renaming, reorganization)
* fix a bug originaly demonstrated by test_version_depends_on
* enhance crossed relation support, though there is still some bug renaming.
some tests were actually wrong.
Buggy tests (wether they fail or not, they are byggy) marked by XXXFIXME)
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/common/ usr/lib/PY_VERSION/site-packages/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/entities/ usr/lib/PY_VERSION/site-packages/cubicweb
debian/tmp/usr/share/cubicweb/cubes/shared/i18n usr/share/cubicweb/cubes/shared/
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/rset.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/gettext.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/toolsutils.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/cwvreg.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/_exceptions.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/schemaviewer.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/dbapi.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/cwconfig.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/__init__.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/md5crypt.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/schema.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/interfaces.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/vregistry.py usr/share/pyshared/cubicweb
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/__pkginfo__.py usr/share/pyshared/cubicweb