Fixed #22618 -- Improved import_string example.

Thanks ewjoachim for the sugggestion.
Removed some references to django.contrib.comments which has been removed.
Fixed typo in transactions.txt
Fixed #22533 -- Added label_suffix parameter to form fields.

Fields can now receive the `label_suffix` attribute, which will override
a form's `label_suffix`.

This enhances the possibility to customize form's `label_suffix`, allowing
to use such customizations while using shortcuts such as
`{{ form.as_p }}`.

Note that the field's own customization can be overridden at runtime by
using the `label_prefix` parameter to `BoundField.label_tag()`.

Refs #18134.
Fixed spelling mistake and added a word to the word list.
Removed an unnecessary anchor in the docs.
Dropped fix_IE_for_vary/attach.

This is a security fix. Disclosure following shortly.
Added additional checks in is_safe_url to account for flexible parsing.

This is a security fix. Disclosure following shortly.
Added release notes for 1.4.13, 1.5.8, 1.6.5.
typo: urlaprse -> urlparse
Merge pull request #2653 from collinanderson/patch-1

typo: urlaprse -> urlparse
Fix typo that disabled code example highlighting
Merge pull request #2654 from merwok/patch-1

Fix typo that disabled code example highlighting
Minor edits to latest release notes.
Fixed #17642 -- Added min_num support to modelformsets, inlines, and the admin.

Thanks Stephen Burrows for work on the patch as well.

Forwardport of 2914f66983a92fcae55673c517dd8d01e8c238c4 from stable/1.7.x
Fixed #20897 -- Added make_cursor() for consistent cursor creation

In django.db.backends.BaseDatabaseWrapper, pulled the creation of
cursors in the non-debug case into a separate method, in order to
make behavior more consistent when overriding the cursor creation
in derived classes.
Harmonized some PEP 0263 coding preambles
Simplified an unnecessarily complex paragraph in view docs
Fixed typo in multipartparser.py
Fixed #21798 -- Added check for DateTime mutually exclusive options

Added DateTimeCheckMixin to avoid the use of default, auto_now, and
auto_now_add options together. Added the fields.E151 Error that is raised
if one or more of these options are used together.