Merge branch 'dfsg' into debian

* dfsg: (642 commits)
  Update README.
  Update authors list.
  Update Mailmap.
  Update version information to 0.6.0
  Do not support precomputed kernels in sparse matrices.
  Update doc.
  FIX tests when run with scikits.learn.test()
  Web page update.
  FIX: update to latest API.
  Web page layout.
  Note on LinearSVC.
  Add AUTHORS to web page.
  Change version to 0.6-rc
  FIX: np.unique.
  FIX: docstring.
  More robust utils.fixes.
  FIX Stupid mistake
  FIX: stupid mistake.
  Better version detection for scipy
  Cosmetic changes.
  ...