Fixed #19545 -- Make sure media/is_multipart work with empty formsets
Updated comment about PostGIS bug 2035

PostGIS 2.0.2 has been released on December 3rd 2012, with the
fix included.
Fixed #19134 -- Allowed closing smtp backend when the server is stopped

Thanks Sebastian Noack for the report and the initial patch.
Fixed #19382 -- Stopped smtp backend raising exception when already closed

Thanks Sebastian Noack for the report and the initial patch.
Added documentation for the 'db' argument of the post-syncdb signal.
Replaced deprecated sslerror by ssl.SSLError

The exact conditions on which this exception is raised are not
known, but this replacement is the best guess we can do at this
point.
Fixed #19192 -- Allowed running tests with dummy db backend

Thanks Simon Charette for the initial patch, and Jan Bednařík for
his work on the ticket.
Fixed #19562 -- cleaned up password storage docs
Fixed #12914 -- Use yaml faster C implementation when available

Thanks Beuc for the report and the initial patch.
Fixed #19173 -- Made EmptyQuerySet a marker class only

The guarantee that no queries will be made when accessing results is
done by new EmptyWhere class which is used for query.where and having.

Thanks to Simon Charette for reviewing and valuable suggestions.
Tests for various emptyqs tickets

The tickets are either about different signature between qs.none() and
qs or problems with subclass types (either EmptyQS overrided the custom
qs class, or EmptyQS was overridden by another class - values() did
this).

Fixed #15959, fixed #17271, fixed #17712, fixed #19426
Fixed #19571 -- Updated runserver output in the tutorial
Created special PostgreSQL text indexes when unique is True

Refs #19441.
Fixed typo in 1.5 release notes; thanks Jonas Obrist.
Fixed #16759 -- Remove use of __deepcopy__ in qs.clone()

The original problem was that queryset cloning was really expensive
when filtering with F() clauses. The __deepcopy__ went too deep copying
_meta attributes of the models used. To fix this the use of
__deepcopy__ in qs cloning was removed.

This commit results in some speed improvements across the djangobench
benchmark suite. Most query_* tests are 20-30% faster, save() is 50%
faster and finally complex filtering situations can see 2x to order
of magnitude improvments.

Thanks to Suor, Alex and lrekucki for valuable feedback.
Updated deprecated test assertions
Fixed #17541 -- Fixed non-saved/nullable fk querying
Fixed #19576 -- Use `six.with_metaclass` uniformously accross code base.
Fixed #19555 - Removed '2012' from tutorial 1.

Thanks rodrigorosa.lg and others for the report.
Added sphinx substitutions in place of hardcoded version numbers.

Refs #19571