Postal-address

------------------------------------------------------------------------------------------

* Restrict ``Faker`` to ``0.8.3`` as the next release seems to mess up
production of territory subdivisions. See 19 and 22.
* Add cache on ``supported_*_codes()`` functions.

------------------------------------------------------------------------------------------

* Re-allow production of random addresses in ``no_NO`` and ``fa_IR`` locales.
* Bump dependency to ``Faker >= 0.7.7``.

------------------------------------------------------------------------------------------

* Exclude production of invalid random addresses in ``fa_IR`` locale.

------------------------------------------------------------------------------------------

* Fix selection of random locale in ``random_address()``.
* Bump dependency to ``Faker >= 0.7.4``.
* Exclude production of invalid random addresses in ``no_NO`` locale.
* Fix rendering of changelog link in RST.

------------------------------------------------------------------------------------------

* Build documentation via Sphinx. Closes 14.
* Move development and packaging documentation to Sphinx.
* Restrict ``pycountry`` to ``16.11.8`` release because of bad Czech Republic
subdivision definitions.
* Remove popularity badge: PyPI download counters are broken and no longer
displayed.
* Move coverage config to ``setup.cfg``.
* Add ``test`` and ``develop`` dependencies.
* Only show latest changes in the long description of the package instead of
the full changelog.
* Replace ``pep8`` package by ``pycodestyle``.
* Enforce ``pycodestyle`` checks in Travis CI jobs.
* Test production of packages in Travis CI jobs.
* Always check for package metadata in Travis CI jobs.
* Make wheels generated under Python 2 environnment available for Python 3 too.
* Add link to full changelog in package's long description.

------------------------------------------------------------------------------------------

* Change internal structure of ``InvalidAddress`` exception to print invalid
field values in error message.
* Update ``pycountry`` to the new calendar-versionned series.
* Allow unittests failure on PyPy3.