verify strings are now correctly passed to aiohttp.TCPConnector

[FHTMitchell]

Description of Change

Fix bug where verify arguments of type str weren't being used correctly (see #850). This is done by passing verify to the ssl.create_default_context method which is then passed to aiohttp.TCPConnector.

Checklist for All Submissions

• I have added change info to CHANGES.rst
• If this is resolving an issue (needed so future developers can determine if change is still necessary and under what conditions) (can be provided via link to issue with these details):
  • Detailed description of issue
  • Alternative methods considered (if any)
  • How issue is being resolved
  • How issue can be reproduced
• If this is providing a new feature (can be provided via link to issue with these details):
  • Detailed description of new feature
  • Why needed
  • Alternatives methods considered (if any)

Checklist when updating botocore and/or aiohttp versions

• I have read and followed CONTRIBUTING.rst
• I have updated test_patches.py where/if appropriate (also check if no changes necessary)
• I have ensured that the awscli/boto3 versions match the updated botocore version

[thehesiod]

awesome ty! could you add yourself to the list of contributors and create a new 1.2.0 section under CHANGES.rst and add this change? I'll publish after we merge

[thehesiod]

actually I'll do it since I need to remove travis anyways