Fix note about video length

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

* Loadbalancer IDs are not UUIDs
* Ensure found list exists before using it
Merge pull request #9511 from sivel/rax-lb-fixes

Fix rax_find_loadbalancer issues
Move from md5 to sha1 to work on fips-140 enabled systems
Fix integration test to check for checksum, not md5sum
Merge pull request #9495 from AloisMahdal/longer_vid

Fix note about video length
Adding v2 task/block iterator and some reorganizing
Fixed 404-link for Michael DeHaan profile page.
Merge pull request #9522 from rndmh3ro/patch-1

Fixed 404-link for Michael DeHaan profile page.
Delete import json. Several syntax changes.

Import json called twice. In first it will call an exception, if json
module not installed.
Merge pull request #9527 from UnderGreen/devel

Delete import json. Several syntax changes.
Support RackConnect v3 by allowing a network to be specified for use in determining ansible_ssh_host
Add support for reading from a config file
Support boot from volume discovery