------------------
- Change test suite to py.test, and convert doctests to unit tests. Some Python
examples were left in the docs for documentation. Did not port the doctests
in the 'html' subpackage because of the potential overhaul of that package.
- delete submodules:
* media (moved ``choose_height()`` to misc. ``get_dimensions()`` has equivalents on
PyPI; e.g., the ``dimensions`` and ``imagefacts`` distributions)
- webhelpers.containers:
* Rename ``only_some_keys()`` to ``copy_keys()``, and ``except_keys()`` to
``copy_keys_except()``, and ``extract_keys()`` to ``split_dict()``. In all
these functions change the ``keys`` argument to ``\*keys``. This parallels
a previous change to ``del_keys()`` in 2.0b3.
- webhelpers.html.tags:
* The ``image()`` helper no longer accepts args 'path' or 'use_pil'. In
WebHelpers these invoked the 'media' package to parse the width and
height from the image file, but the 'media' package was not ported to
WebHelpers2. It raises TypeError if these args are specified.
- webhelpers.text:
* Change the argument signature of ``series()``. The items are now positional
args, and the keyword args are renamed to ``conj`` and ``strict``.