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- deprecate str-type ``attr`` with:
- redesign attr input with new ``Attr`` object
- ``"-1"`` now is ``Attr.s`` (``"s"``)
- ``_str_attr_to_int()`` to handle str-type before the removal
- deprecate function name ``smartyPants``, now ``smartypants``
- remove ``tags_to_skip_regex`` and add ``tags_to_skip`` as a list of
skipped HTML with a helper function to compile a regular expression
* command-line
- add ``--version``
- add ``--skip`` for skipped elements
* add Makefile:
- ``test_pep8``, ``test_pyflakes``, and ``test_test`` (unittest)
targets
- ``install_test`` target for checking package installation
- ``test`` target for all tests above
+ add ``style``, ``samp``, and ``tt`` to be skipped HTML elements