Rename policy to refpolicy-patched

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Fix git submodules

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Suport ArchLinux system

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>