Normalize indentation in docstrings and function params
Replace _extractall with the canonical TarFile.extractall.
Don't eagerly import namespace packages.  This was the big reason for
branching to 0.7 now, as I wanted this wart gone before anything went
into Python 2.5.  But it's gone now, yay!

--HG--
extra : source : f3c5c19842064dd4a497baef0171aac54464a484
extra : amend_source : 3f79e71eedfc5f37a1813967bb53cf9d92a11919
Namespace package doc tweaks.

--HG--
extra : source : 81bfac3cf9a11fbb52b43cb3106419085ac8aee5
extra : histedit_source : 942f45916acfe482998d0cb7adefc08f095dcf0c
Bumped to 3.0 in preparation for next release.
Declare support for Python 3.4
Use zip files rather than tar files for source distributions of setuptools itself. Fixes #7 for users of Python 2.7.4 and later.
Extract 'archive_context' from _install and _build_egg