Added python-libarchive to tox dependencies. Fixes Issue 123
Added python-libarchive to tox dependencies. Fixes Issue 123

piranna/pyfilesystem,pmitros/pyfs,zopyx/pyfilesystem,flying-circus/pyfilesystem,Konubinix/pyfilesystem,pombreda/pyfilesystem,PyFilesystem/pyfilesystem,pmitros/pyfs