Update the container tokens when the parent machine is committed
Added test for re-selecting machine when updated
Added more menu to column headers.
Merge pull request #511 from huwshimi/header-more-menus

Added more menu to column headers.

Moved the Add machine/container controls into more menus.
Display onboarding for first/one machine.
Review feedback.
Merge pull request #510 from hatched/update-container-status

Update container token committed status when parent machine changes.

This fixes the issue when committing a machine it's root container token wasn't updated.
Merge pull request #509 from kadams54/one-machine-onboarding

Display onboarding for first/one machine.