deactivate user. PMT #95450

A superuser can now deactivate a user account.

They are prompted with a form to reassign items and projects
that were owned/assigned/caretaker'ed by the user.
Show clients on item detail page
use reverse()
Don't instantiate test.Client since Django's TestCase already does this
Merge pull request #65 from nikolas/show-item-clients

PMT #95444 Show clients on item detail page
Merge pull request #64 from nikolas/dont-instantiate-client

Don't instantiate test.Client since Django's TestCase already does this
Merge pull request #60 from thraxil/deactivate-user

deactivate user. PMT #95450