Add Python build artifacts to gitignore.
Change {{VERSION}} placeholder to the current version 0.9.1.

Initially this was set via shell script during the export process from Google's
repository to the open-source one, but now that most changes are coming from the
open-source repository, it doesn't make sense.  Since it's only in 2 places and
changes will likely be infrequent, it's easier to update it manually.
Tuned the Python long-description to use reStructured Text, and customized it for Python usage.
Bumped up development status to production/stable.  This library's well-tested enough that it's of comparable stability to other production/stable libraries, despite not yet reaching 1.0.
Add POSIX :: Linux to PyPi classifiers.
Revert "Bumped up development status to production/stable.  This library's well-tested enough that it's of comparable stability to other production/stable libraries, despite not yet reaching 1.0."

On second thought - can't hurt to be conservative for now and get some people
using it off PyPI before claiming production quality.

This reverts commit cf807fa1d8a1e7f36de024302e44317872c902ce.
Add Python build directory to gitignore.
Merge branch 'master' into pypi_fixes.  Syncing in upstream changes.
Updated Python examples to match import structure.
Catch ImportErrors around html5lib_adapter and soup_adapter, so the library can be used even if those pre-reqs aren't installed.
Try to load the DLL from .libs first, to pick up development changes and allow for Python packaging.
Make setuptools install libgumbo.so as well so the library can be used through pip install.
Add classifiers.  Also update my e-mail to point to the non-Google one, since the Google one now bounces.
Support Python 3 now.
Bump the version number back down to 0.9.1 now that we're done testing on testpypi.
Merge pull request #243 from nostrademons/pypi_fixes

Pypi fixes