Trying to fix a flakey test.

Signed-off-by: Phan Le <ple@pivotallabs.com>
Add an endpoint to restage the app

Currently we do not plan to document this, but have it as a utility for
advanced CF operators.

[#65335102]

Signed-off-by: Kai Zhang <kaizhang@cn.ibm.com>
Update error message during broker create/update

When a client is claimed by a different broker AND it does not exist in
the UAA, we get the proper error.

This commit also includes a large refactor of the
DashboardClientManager.
Fix the build