[arch-dev-public] adding pyelftools to [extra]

[Rémy Oudompheng]

Hello,

I'd like to add pyelftools (http://pypi.python.org/pypi/pyelftools) to
[extra]. The goal is to replace various utilities that are currently
used by namcap to analyse ELF files, notably prelink.

Then I would apply Dave's patch  for namcap
(http://mailman.archlinux.org/pipermail/arch-projects/2012-February/002448.html)
that uses it and drop dependency on prelink.

Rémy.