FAHClient: Sync with upstream

---
  13 May 2013; Ian Stakenvicius <axs@gentoo.org> foldingathome-7.3.6-r2.ebuild:
  showing special permission during pkg_setup so that we 'display this notice.'

  13 May 2013; Ian Stakenvicius <axs@gentoo.org> foldingathome-7.3.6-r2.ebuild:
  put back mirror restriction (was too excited about dropping fetch, forgot to
  re-add)

  13 May 2013; Ian Stakenvicius <axs@gentoo.org> foldingathome-7.3.6-r2.ebuild:
  Dropped fetch restriction and amended license, as Gentoo has been granted
  special permissions
---