Make Operation Status Always Available

Currently the response status message is only available when something fails on the server side. This is however suboptimal. This information is only available through the logging facility where it is hard to obtain.

E.g. when successfully adding a user in the testing environment the login credentials are passed via the status message. This behaviour is not described in the official documentation. According to this behaviour we can guess that there may be also other circumstances when the status message can contain additional useful information.

It is therefore necessary to make this information always available.