- Moved depndencies for the special SampleDataLayer setup to the "testing"
  extra.

- Added ``MANIFEST.in`` and ``tox.ini``.

- Fixed file headers.

- Browser views are only available using the "browser" extra.

- Change ``zope.app.pagetemplate`` dependency to ``zope.browserpage``.
Preparing release 1.0.0
Back to development: 1.0.1