Fix macro inheritance bug

       options were treated as errors.

       (This was an ill-considered temporary attempt to
       make used of the new bootstrap script easier.)

Moved the download locatiion to downloads.buildout.org.

is preserved.

Tighten config file syntax to allow fewer variations.

       used.

under Python 2.

Correct the name of the file for Python 3.3.0, removing rc1.

for Python 3.

  >=2.0dev in addition to being simple versions.

Son't set buildout:accept-buildout-test-releases. It isn't used any
more.

Maybe we can work with older versions of the egg recipe and other
recipes that biuild on it, making rollout of buildout 2 a bit simpler.