Added support for xattr to MemoryFile
Added support for xattr to MemoryFile
pombreda/pyfilesystem,PyFilesystem/pyfilesystem,zopyx/pyfilesystem,rivenz/pyfilesystem,pmitros/pyfs,flying-circus/pyfilesystem,piranna/pyfilesystem,pmitros/pyfs,Konubinix/pyfilesystem