* fix AWS plugin credential precedence for environment variables
* Allow aliases in direct plugins options
Consolidate precedence fix just in the doc fragment using aliases for mismatched options
* Access options with the option name rather than alias
* fix indentation
* update unit tests
* Improve readability
* Add a lookup plugin for AWS account attributes
* PEP8
* Use config system instead of hard coding logic for environment variables
* simplify logic
* Return a flattened dict to make using easier
* Reformat return example
Sloane Hertel
Dag Wieers