TestStateStore_Indexes specifically tests for `nodes` index, but asserts
on the exact number of indexes present in the state.  This is fragile
and will break almost everytime we add a state index.

health: detect failing tasks

Fix some flaky tests

Start collecting raw `go test -json` output to help with debugging odd
CI failures.

add changelog entries for 0.11.0

fix typo

update enterprise audit blurb

This connects Xterm.js to a Nomad exec websocket so people
can interact on clients via live sessions. There are buttons on
job, allocation, task group, and task detail pages that open a
popup that lets them edit their shell command and start a
session.

More is to come, as recorded in issues.

Support per-task RestartPolicy

more testing for scaling API

docs: audit logging

HTTP API documentation for the `/plugin` and `/volume` endpoints, to
support CSI.

docs for audit logging

enterprise only note

enterprise page audit blurb

add audit to sidebar

add general options audit info

fix name for docs-navigation

link to docs

more docs

add audit log entry examples

fix audit link

clean up audit log docs

plus tests

Plugins track the client nodes where they are placed. On client
updates, remove the client from the plugin tracking if the client is
no longer running an instance of that controller/node plugin.

Extends the state store tests to ensure deregistration works as
expected and that controllers and nodes are being tracked
independently.

Co-Authored-By: James Rasell <jrasell@users.noreply.github.com>

Scaling API changes

Includes:

* changes `nomad alloc status` and `nomad node status`
* changes to `volume` block in jobspec
* new `csi_plugin` block in jobspec
* new `nomad volume register/deregister/status` commands
* new `nomad plugin status` command

that we were throwing away .Min if provided