Add AWS IAM authentication mode

Add AWS IAM authentication test
Adding changes in support of VM -> Template provisioning
Merge pull request #237 from jkrocil/aws_iam_auth_mode

Add AWS IAM authentication mode
Merge pull request #236 from rlandy/provisioning_pgs

Adding changes in support of VM -> Template provisioning
Added dependencies for version and docs tests

Updated About page to include the properties of
version_number - tuple of version number
docs_links - list of unique doc URLs on the page
Merge pull request #238 from psav/testing_version

Added as dependency of testing version number
Issue 61: Worker diagnostics
Merge pull request #240 from mfalesni/diagnostic_worker

Issue #61: Worker diagnostics