Parliament

- Update IAM data

- Updates IAM data
- Add stricter checking to resource attributes 177 - thanks briandbecker!
- Fixes --aws-managed-policies and --auth-details-file which were breaking due to json-cfg 175 - thanks RyanJarv!
- Updated AWS principal regex to allow CloudFront OAI ARNs, added a test 174 - thanks seth-carroll!

- Updates IAM data
- Validate use of NotResource and NotAction based on AWS best practices via 166 from raghavkaul
- Find all unknown Actions and unknown Prefixes in a Statement via 165 from raghavkaul

- Bug fix from piax93 where `node_exists` was being called but did not exist (158)
- Bug fix from KevinHock where an `INVALID_ARN` was causing other findings to incorrectly occur (159)
- Readme now references https://github.com/z0ph/aws_managed_policies and KevinHock also made some spelling fixes.
- Updates IAM data

The AWS doc format changed (155) so this fixes that and updates the IAM data.

Updates IAM.
Fixes 153 (an issue with NotAction) via 151 by danielpops