When changing adapter to make it work with env vars I used PATCH method.
Hooks are using PUT to update active fields, so it broke hooks. This
commit moves saveRecord with PATCH to env vars' adapter.
For some cases (like coming env vars) we will need to also pass a
repository id to the URL, so I'm passing it from createRecord and other
methods which handle records.
Ember Model does not do it automatically. I had a patch, which was
changing that, but after giving it more thought, I think it's not a good
idea - this should be up to adapter if the records are going into
record arrays.
