PUT/PATCH on CIs
Partly corrected the API
Saving ownerships
Corrected GET
Attributes are now writeable
Corrected api and tests (one strange test fails)
Fixed the test that failed due to lack of ``path``
Tests and fixes for POST
Tested PUT
Tested PATCH method
flake
Renamed class
Review notions
Merge pull request #712 from zefciu/cmdb-api-rw

Cmdb api rw