Delete import json. Several syntax changes.

Import json called twice. In first it will call an exception, if json
module not installed.

Fixed 404-link for Michael DeHaan profile page.

Fix note about video length

Fix rax_find_loadbalancer issues

* Loadbalancer IDs are not UUIDs
* Ensure found list exists before using it

fixed ssh fix, bad test case but it should work now

added error handling on private key stat in case it is saved in agent

but not in filesystem

changed examples to not have a  non working variable

with directives as per #9264

add documentation for the delegate_to magic variable

Fix path to the integration tests in docsite

"tests/integration" -> "test/integration"

* Playbook
* TaskInclude

Perhaps due to update mentioned at /resources page, the video is 34
minutes long.

updated to latest core module

last

updated ref to core with updated cloud sublcases with __init__.py

Doc subcategory merge fix

now merge

Load aliases

Only fallback to paramiko now when the ssh password has been set,
either through inventory or via a prompt.

Fixes #9470