Improved no_state_changes message

And moved it to the bottom of the code (like other pages)

Added logged-in and out classes to header

Changed way of defining an admin user

Added some styles for logged out header

fixes #5743
Simplify a couple specs.
Fix the styling of the state field on the stock location admin page +

The form-control class is missing from the text input, which is
activated when the selected country has no states.
New CircleCI badge!

fixes #5751
Update order tabs data-hooks to reflect the state
fixes #5750