Scheduled weekly dependency update for week 31

[pyup-bot]

Updates

Here's a list of all the updates bundled in this pull request. I've added some links to make it easier for you to find all the information you need.

botocore	1.5.86	»	1.5.90	PyPI | Changelog | Repo
django-storages	1.6.3	»	1.6.4	PyPI | Changelog | Repo
psycopg2	2.7.2	»	2.7.3	PyPI | Changelog | Homepage | Docs
requests	2.18.1	»	2.18.2	PyPI | Changelog | Homepage

Changelogs

botocore 1.5.86 -> 1.5.90

1.5.90

======

• api-change:ec2: Update ec2 client to latest version
• api-change:kinesisanalytics: Update kinesisanalytics client to latest version

1.5.89

======

• api-change:dynamodb: Update dynamodb client to latest version
• api-change:ec2: Update ec2 client to latest version
• api-change:cloudwatch: Update cloudwatch client to latest version

1.5.88

======

• api-change:clouddirectory: Update clouddirectory client to latest version
• api-change:cloudformation: Update cloudformation client to latest version

1.5.87

======

• api-change:appstream: Update appstream client to latest version
• api-change:ec2: Update ec2 client to latest version

django-storages 1.6.3 -> 1.6.4

1.6.4

---

• Files uploaded with GoogleCloudStorage will now set their appropriate mimetype (320_)
• Fix DropBoxStorage.url to work. (357_)
• Fix S3Boto3Storage when AWS_PRELOAD_METADATA = True (366_)
• Fix S3Boto3Storage uploading file-like objects without names (195, 368)
• S3Boto3Storage is now threadsafe - a separate session is created on a
  per-thread basis (268, 358)

.. _320: jschneier/django-storages#320
.. _357: jschneier/django-storages#357
.. _366: jschneier/django-storages#366
.. _195: jschneier/django-storages#195
.. _368: jschneier/django-storages#368
.. _268: jschneier/django-storages#268
.. _358: jschneier/django-storages#358

psycopg2 2.7.2 -> 2.7.3

2.7.3

^^^^^^^^^^^^^^^^^^^^^^^^^^^

• Restored default :sql:timestamptz[] typecasting to Python !datetime.
  Regression introduced in Psycopg 2.7.2 (:ticket:578).

requests 2.18.1 -> 2.18.2

2.18.2

+++++++++++++++++++

Bugfixes

• requests.help no longer fails on Python 2.6 due to the absence of
  ssl.OPENSSL_VERSION_NUMBER.

Dependencies

• We now support urllib3 v1.22.

That's it for now!

Happy merging! 🤖