Update boto to 2.49.0

[pyup-bot]

This PR updates boto from 2.42.0 to 2.49.0.

Changelog

2.49.0

============

:date: 2018/07/11

Updated the CA Bundle as well as some bucket encryption fixes.


Changes
-------
* Import the latest CA Bundle from certifi (:issue:`3818`, :sha:`e4699cba`)
* Fix to support uploads to KMS-encrypted buckets. (:issue:`3800`, :sha:`0a1d9040`)
* Support fetching GCS bucket encryption metadata. (:issue:`3799`, :sha:`132b64d2`)
* Update layer1.py (:issue:`3765`, :sha:`53340159`)
* Fix tests/unit/glacier/test_writer.py to make work with pypy. (:issue:`3762`, :sha:`8402c5d6`)

2.48.0

============

:date: 2017/06/29

This release addresses a few S3 related bugs as well as a bug with the recent
endpoint heuristics feature.

Changes
-------
* Fix generate_url() AttributeError when using anonymous connections (:issue:`3734`, :sha:`83481807`)
* Use RegionInfo by default with heuristics (:issue:`3737`, :sha:`0a9b1140`)
* Allow specifying s3 host from boto config file. (:issue:`3738`, :sha:`dcfc7512`)

2.47.0

============

:date: 2017/05/24

Adds features for Google Cloud Storage.

Changes
-------
* Loosen requirements for ID field in PROJECT_PRIVATE_RE. (:issue:`3729`, :sha:`5e85d7c7`)
* Populate storage class from HEAD Object responses. (:issue:`3691`, :sha:`315b76e0`)

2.46.1

============

:date: 2017/02/20

Fixes a bug where a recently added module was not added to setup.py

Changes
-------
* Add boto.vendored.regions to setup.py (:issue:`3682`, :sha:`43e796d1`)

2.45.0

============

:date: 2016/12/14

Add support for eu-west-2 region.


Changes
-------
* Add support for eu-west-2 (:issue:`3654`, :sha:`40c68db`)

2.44.0

============

:date: 2016/12/08

Adds support for ``ca-central-1`` region and gs object-level storage class.

Changes
-------
* Update endpoints (:issue:`3649`, :sha:`a1eae11`)
* Add gs support for object-level storage class features. (:issue:`3635`, :sha:`dc4bf34`)

2.43.0

============

:date: 2016/10/17

Adds support for ``us-east-2`` endpoint.


Changes
-------
* Add support for ``us-east-2`` endpoint (:sha:`262ed00`)
* Account for metadata update propagation delay (:issue:`3615`, :sha:`592dae3`)
* boto.dynamodb2.table.Tablebatch_get() fails to paginate results if provisioned throughput is exceeded (:issue:`3574`, :sha:`abb3847`)

Links

• PyPI: https://pypi.org/project/boto
• Changelog: https://pyup.io/changelogs/boto/
• Repo: https://github.com/boto/boto/