[pkginfo] when only __depends__ is specified, deduced __depends_cubes__ from it (same thing for recommends) ; fix ad skel pkginfo on the way

\.svn
^build$
^dist$
\.pyc$
\.pyo$
\.bak$
\.old$
\~$
\#.*?\#$
\.swp$
^doc/book/en/apidoc$