Fixed #21572 -- Added unit test for django.utils.text.normalize_newlines.
Merge pull request #2045 from vajrasky/ticket_21572

Fixed #21572 -- Added unit test for django.utils.text.normalize_newlines...
Fixed #21568 -- Added missing ModelMultipleChoiceField to_python method

Thanks dibrovsd at gmail.com for the report and Simon Charette
for the review.
Fixed #21551 -- Reenabled loading fixtures from subdirectory

This was a regression in Django 1.6 that was only partially
restored in 839940f27f.
Thanks Jonas Haag for the report.
Fixed #21555 -- Made ValidationError pickable.

Thanks trac username zanuxzan for the report and original patch.
Added extra newline for flake8.
Removed unneeded string normalization in contrib.admin

With Python 2.7 and up, named parameter keys are not limited to
bytestrings any longer. This mainly reverts 3bd384aa626.
Trigger AttributeError in ValidationError.message_dict when error_dict is missing.

The goal of this change is twofold; firstly, matching the behavior of Django 1.6
and secondly, an AttributeError is more informative than an obscure ValueError
about mismatching sequence lengths.

Refs #20867.
Fixed #21573 -- Improved performance of utils.text.normalize_newlines.
Fixed #18531 -- Deprecated Geo Sitemaps

I've chosen a quick deprecation path, as Geo Sitemaps themselves
are deprecated from some time now.
Renamed first argument of class method to cls
Merge pull request #2050 from maurycyp/master

Renamed first argument of class method to cls
Merge pull request #2048 from loic/ValidationError.message_dict

Trigger AttributeError in ValidationError.message_dict when error_dict is missing.
Made flake8 ignore the .git directory.
Merge pull request #2052 from loic/setup.cfg

Made flake8 ignore the .git directory.
(Re-)added GeoDjango instructions for building pysqlite2 correctly.

This is a partial undo of 1b142ef5dd.
Updated a bunch of hyperlinks in documentation
Removed an erroneous leading slash introduced by a626bdf648a.
Fixed #21560 -- missing 'slug' field in example code
I updated the documentation, that the modelform now includes the 'slug' field.
Merge pull request #2058 from c-schmitt/fixes_21560

Fixed #21560 -- missing 'slug' field in example code