Fixed update_index process leak.
update_index: use tz-aware datetime where applicable

This will allow Django 1.4 users with USE_TZ=True to use update_index with time
windowing as expected - otherwise the timezone offset needs to be manually
included in the value passed to -a
Tests for update_index timezone support

* Confirm that update_index --age uses the Django timezone-aware now
  support function
* Skip this test on Django 1.3
Fixed deprecation warning

django.conf.urls.defaults is now deprecated. Use django.conf.urls instead.
Maintain Django 1.3 compatibility
tox: store downloads in tmpdir
test runner: add $TEST_RUNNER_ARGS env. variable

This allows you to export TEST_RUNNER_ARGS=-v0 to affect all 9
invocations
tox: refactor envlist to include Django versions

* Expanded base dependencies
* Set TEST_RUNNER_ARGS=-v0 to reduce console noise
* Add permutations of python 2.5, 2.6, 2.7 and django 1.3 and 1.4
test runner: set exit codes on failure
Merge pull request #699 from acdha/tox-multiple-django-versions

Minor tox.ini & test runner tidying
Whoosh tests: use a unique tempdir

This ensures that there's no way for results to persist across runs
and lets the OS clean up the mess if we fail catastrophically

The multiindex and regular whoosh tests will have different prefixes to ease
debugging
multiple index tests: correct handling of Whoosh teardown

We can't remove the Whoosh directory per-test - only after every
test has run…
Tests: mark expected failures in ElasticSearch suite

This avoids making it painful to run the test suite and flags the tests which
need attention
Tests: mark expected failures in Whoosh suite

This avoids making it painful to run the test suite and flags the tests which
need attention
Merge pull request #682 from acdha/682-update_index-tz-support

update_index should use non-naive datetime when settings.USE_TZ=True
Be a bit more careful when resetting connections in the multiprocessing updater. Fixes #562.
Merge branch 'master' of github.com:toastdriven/django-haystack
Merge pull request #552 from hadesgames/master

Fixes process leak when using update_index with workers.
Removed star imports
Updated ignores.