This reverts commit dd66f235ec.
This changed the core servers API without doing it as an API extension,
so it's not an acceptable change as written.
Change-Id: I3787060583de1371e366647d38d69f37746317d5
Adds tests and templates for testing of the server rescue
API extension. Tests both json and XML API functionality.
Change-Id: Icb241e96ebedde0b6385f8ba60eebd0e768f22da