Update bleach to 3.1.5

[pyup-bot]

This PR updates bleach from 3.1.0 to 3.1.5.

Changelog

3.1.5

--------------------------------

**Security fixes**

None

**Features**

None

**Bug fixes**

* replace missing ``setuptools`` dependency with ``packaging``. Thank you Benjamin Peterson.

3.1.4

--------------------------------

**Security fixes**

* ``bleach.clean`` behavior parsing style attributes could result in a
regular expression denial of service (ReDoS).

Calls to ``bleach.clean`` with an allowed tag with an allowed
``style`` attribute were vulnerable to ReDoS. For example,
``bleach.clean(..., attributes={'a': ['style']})``.

This issue was confirmed in Bleach versions v3.1.3, v3.1.2, v3.1.1,
v3.1.0, v3.0.0, v2.1.4, and v2.1.3. Earlier versions used a similar
regular expression and should be considered vulnerable too.

Anyone using Bleach <=v3.1.3 is encouraged to upgrade.

https://bugzilla.mozilla.org/show_bug.cgi?id=1623633

**Backwards incompatible changes**

* Style attributes with dashes, or single or double quoted values are
cleaned instead of passed through.

**Features**

None

**Bug fixes**

None

3.1.3

--------------------------------

**Security fixes**

None

**Backwards incompatible changes**

None

**Features**

* Add relative link to code of conduct. (442)

* Drop deprecated 'setup.py test' support. (507)

* Fix typo: curren -> current in tests/test_clean.py (504)

* Test on PyPy 7

* Drop test support for end of life Python 3.4

**Bug fixes**

None

3.1.2

--------------------------------

**Security fixes**

* ``bleach.clean`` behavior parsing embedded MathML and SVG content
with RCDATA tags did not match browser behavior and could result in
a mutation XSS.

Calls to ``bleach.clean`` with ``strip=False`` and ``math`` or
``svg`` tags and one or more of the RCDATA tags ``script``,
``noscript``, ``style``, ``noframes``, ``iframe``, ``noembed``, or
``xmp`` in the allowed tags whitelist were vulnerable to a mutation
XSS.

This security issue was confirmed in Bleach version v3.1.1. Earlier
versions are likely affected too.

Anyone using Bleach <=v3.1.1 is encouraged to upgrade.

https://bugzilla.mozilla.org/show_bug.cgi?id=1621692

**Backwards incompatible changes**

None

**Features**

None

**Bug fixes**

None

3.1.1

-----------------------------------

**Security fixes**

* ``bleach.clean`` behavior parsing ``noscript`` tags did not match
browser behavior.

Calls to ``bleach.clean`` allowing ``noscript`` and one or more of
the raw text tags (``title``, ``textarea``, ``script``, ``style``,
``noembed``, ``noframes``, ``iframe``, and ``xmp``) were vulnerable
to a mutation XSS.

This security issue was confirmed in Bleach versions v2.1.4, v3.0.2,
and v3.1.0. Earlier versions are probably affected too.

Anyone using Bleach <=v3.1.0 is highly encouraged to upgrade.

https://bugzilla.mozilla.org/show_bug.cgi?id=1615315

**Backwards incompatible changes**

None

**Features**

None

**Bug fixes**

None

Bleach changes
==============

Links

• PyPI: https://pypi.org/project/bleach
• Changelog: https://pyup.io/changelogs/bleach/
• Repo: https://github.com/mozilla/bleach
• Docs: https://pythonhosted.org/bleach/