Update services

This includes cloudfront, route53, and cognito-sync
Bumping version to 0.70.0
Merge branch 'release-0.70.0' into develop

* release-0.70.0:
  Bumping version to 0.70.0
  Update services
Update cred provider to have more general date parser

Also, the default time fetcher now returns time zone aware
local time.  This results in no external function change,
but it does allow for more generalized date string formats
to be provided (it uses dateutil.parser.parse() to parse
timestamps now).
Merge branch 'fix-retry-auth-error' into develop

* fix-retry-auth-error:
  Remove unused import
  Only set auth_path once, fixes signing errors
Cleanup test_credentials formatting

* pep8
* remove unused imports
* remove unused vars
* adding missing assertion to a test
Revert "Merge branch 'fix-retry-auth-error' into develop"

This branch is failing multiple S3 integration tests and needs
investigation.

This reverts commit 791cfdcf8dd08ded1b65e2dfd5d684aa2fddea0a, reversing
changes made to e754fc0d7b4a51dc1ac11c8fc5916873ce458526.
Merge branch 'tz-aware-cred-refresh' into develop

* tz-aware-cred-refresh:
  Cleanup test_credentials formatting
  Update cred provider to have more general date parser
Move auth_path handling to the request.

This fixes the previous issue where this was not fixed
previously by checking if the auth_path was not None.
By moving the handling of the auth_path onto the request
itself, this makes is easier to ensure that the auth_path
manipulation only happens on a per request basis.