- Switched from ``zope.testbrowser`` to ``WebTest`` for browser testing, since
  test browser is not yet ported.

- Modernized API to use latest packages and component paths.

- Reduced test dependencies to the smallest set possible.
Py 3 Step 1: Ready the package for porting. Make sure all deps are ported.

- Switched from ``zope.testbrowser`` to ``WebTest`` for browser testing, since
  testbrowser is not yet ported.

- Modernized API to use latest packages and component paths.

- Reduced test dependencies to the smallest set possible.
Actual port to Python 3.
Preparing release 1.0.0a1
Back to development: 1.0.0a2