Correct Lithuanian short date format.
Fixed #19457 -- ImageField size detection failed for some files.

This was caused by PIL raising a zlib truncated stream error since we fed
the parser with chunks instead of the whole image.
Fixed a NameError in geoip/libgeoip if the GeoIP library is not found.

Thx to Bouke Haarsma for the report.
Merge pull request #182 from kspi/patch-1

Correct Lithuanian short date format.
Replaced e.message with e.args[0] in 3aa4b8165da23a2f094d0eeffacbda5484f4c1f6.
Replaced six.reraise with a simple raise.
Added a helper script for managing django translations
Updated our six module to follow upstream changes.

This includes fixes for the java/jython detection and a new license header.

Thanks to Thomas Bartelmess for the report.
Tiny typo fixed in logging docs
Merge pull request #615 from evildmp/patch-3

Tiny typo fixed in logging docs
Removed unusable parameters to empty_form property
Modernized middleware tests.

* Used override_settings consistently -- changes to DEBUG could leak.
* Took advantage of assertRaisesRegexp.
* Fixed indentation -- some code was indented at 2 spaces.
Fixed #19520 - Corrected some misleading docs about template_name_suffix.

Thanks jnns for the report.
Fixed #19549 - Typo in docs/topics/auth/default.txt
Fixed #19547 -- Caching of related instances.

When &'ing or |'ing querysets, wrong values could be cached, and crashes
could happen.

Thanks Marc Tamlyn for figuring out the problem and writing the patch.
Minor fixes in the known_related_objects tests.

* Fixed JSON indentation.
* Avoided relying on implicit ordering.
Fixed PR 478 -- Removed superfluous try/except block.
Update doc example for overriding change_form.html

Slightly reworded another related paragraph for clarity, too.
Fixed #19516 - Fixed remaining broken links.

Added -n to sphinx builds to catch issues going forward.
Fixed #19545 -- Make sure media/is_multipart work with empty formsets