deactivate happens _after_ the new route's model hook, which
results in the possibility of canceling new requests right
after they are made rather than existing open connections

They are only for the overview page, not the whole hierarchy

- Service to manage X-Nomad-Index values
- Adapter method for reloading relationships with additional params
- Pattern for watching models and model relationships using EC

Generated with a codemode:
https://github.com/ember-cli/ember-modules-codemod

This reverts commits
141ecd8d
d2d838c2
8099db43
86262b3c
eb4104ec
0e0e23e2
6d45658d
b52a8176

This guarantees no privileged data is shown to unprivileged credentials