Update examples.rst

Fixed TABLE_*
Merge pull request #34 from neonknight/patch-2

Update examples.rst
Set _xtables._xtables_pending_matches and ._xtables_pending_targets
to None if they are not found in libxtables.
Merge pull request #35 from ericvsmith/master

See ldx/python-iptables issue #33
Use consistent parameter names.
Fix memory leak in Target.

Move freeing of Target._target_buf to another class, thus getting rid of
__del__() in Target. This enables Python to garbage collect Target
objects - before this gcing Target was not possible because of the
circular reference between Rule and Target.
Release matches after use.

Matches are allocated dynamically for the same type except the first
instance. Free them via _Buffer when the python object is
gced.
Add /usr/lib/iptables as possible XTABLES_LIBDIR.
Use dict as Table cache.

For both IPv4 and IPv6, use a dict instead of a weakref cache. This
makes the cache a permanent one, and avoids the overhead of
creating/freeing tables too often.
update Table._free to use autocommit check
Reset autocommit flag after test.
Update documentation.
Generate README.md from RST docs.
Release v0.2.0.
Update classifiers in setup.py.
Fix stdout closing/reopening around save().

The save() callback prints rules to stdout in the extension. Make sure
we close and then reopen not just the low-level fd, but the Python file
as well around it.
Update README.
Update URL.
Refactor IPTCModule._save().
Fix #45.