* Protect AWS credentials from accidental commits
* Improve documentation for IAM policies
* Update ELB tests to be multi region
Allow AZs to reflect the region in which the tests are run.
This will not work for regions with fewer than three AZs,
but those are relatively rare
The note only had one colon instead of two, which allowed it to pass rstcheck but failed to actually generate the note in the HTML.
Also remove an unnecessary trailing colon.
* aws integration tests - provide an IAM policy that can be used for running them
* move documentation of aws policies into main integration testing documentation + some updates there
* Update testing_integration.rst
Edits
* Big testing doc refactor
* Combine all the testing documentation in to one place to make it easier to find
* Convert everything to RST
* Create testing_network guide
* Create testing landing page
* For each section detail "how to run" and "how to extend testing"
* More examples
* Lots more detail
