Fix note about video length

Perhaps due to update mentioned at /resources page, the video is 34
minutes long.
added error handling on private key stat in case it is saved in agent
but not in filesystem
Merge pull request #9509 from bcoca/no_ssh_fail_missing_keyfile

added error handling on private key stat in case it is saved in agent
fixed ssh fix, bad test case but it should work now
Merge pull request #9510 from bcoca/ssh_agent_wo_keyfile

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