Refactor infrastructure specific setup.

   + Also check to make sure AWS User data is set,
     and log an error in the diego-edge-bootstrap log.

Signed-off-by: David Wadden <dwadden@pivotal.io>
use new lattice-environment to print ip address on start-up

Signed-off-by: Matthew McNew <mmcnew@pivotal.io>
correct whetstone pipeline script to grab system domain from lattice-environment

Signed-off-by: Matthew McNew <mmcnew@pivotal.io>
Bump Version: 27 -> 28
Merge branch 'master' of github.com:pivotal-cf-experimental/diego-edge into develop