Test case for edge cases of the "add/remove/update" features of the REST project service.

Authenticate "admin.user" with "admin.password"
Get all projects and pick the first one.
Call "update" without any changes
- TEST: get that project back from the server and it should be equals
Clear the id and call "add project".
Call "remove project" with the id of the new project.
Call "remove project" again with the same id.
- TEST: no exception, simply doesn't do anything.

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