Add db_subnet_group to restore_dbinstance_from_point_in_time
Fixed STS' ``assume_role_with_web_identity`` method.
Correctly fetch VPC instances from SG.

Use filters to fetch the instances.
Conform to PEP8, except E501
Further fixed STS ``assume_role_with_web_identity``.
Add unit tests for new security group filtering behavior
Added a fix for ``request_id`` not being present.
make ResourceRecordSet work when iterated through multiple times
test for ResourceRecordSet miscounting problem
PEP8 fixes
Merge pull request #1677 from danielgtaylor/vpc-secgroup

Update SecurityGroup instance fetching to use filters; Fixes VPC instance issue. Fixes #1677 #1665.
Fix typo and set record limit to minimum required to reproduce the issue.
Fix a bug where only 100 records can be added or deleted at a time by sending these batches and starting a new batch when crossing 100, 200, etc boundaries. Integration tests now pass.
Merge pull request #1640 from reversefold/point_in_time_db_subnet_group

Add db_subnet_group to restore_dbinstance_from_point_in_time. Fixes #1640.
Fix typo
Merge pull request #1680 from danielgtaylor/r53-iteration

Fix and test for ResourceRecordSet iteration when length > 100. Fixes #1680, #1648, #1647.
Updated custom connection example.
Merge pull request #1681 from jason-w/develop

Updated custom connection example.
Both GET & POST work, so we'll stick with POST.
Merge branch 'sts-assume-web-identity-fix' into develop