Removed the reference to `disk` in the `resources` overview statement

Stop Vault token renew on task exit

Fix dispatch of periodic job

Various fixes for setting user/group of task

Access Node Meta and Attrs in template

Fix periodic job state

Proper reference counting through task restarts

This PR fixes an oversight in which the client would attempt to renew a
token even after the task exits.

Fixes https://github.com/hashicorp/nomad/issues/2475

Mention Nomad CLI remote usage

Fix TLS use in AllocFS API and region/dc detection

Added information about `NOMAD_ADDR` environment variable for Nomad CLI remote usage.

This PR fixes an issue in which when a periodic and parameterized job
was dispatched, an allocation would be immediately created.

Fixes https://github.com/hashicorp/nomad/issues/2470

This PR allows accessing the Node's attributes and metadata as in a
template.

```
template {
    data = "{{ env \"attr.unique.network.ip-address\" }}"
    destination = "local/out"
}
```

Remove incorrect list of supported protocols

added git docs to artifacts

Fix typo in documentation link

This PR fixes an issue in which a periodic job would incorrectly
transistion to status dead.

Fixes https://github.com/hashicorp/nomad/issues/2268

Remove the reference to `http://localhost:4567` within the Rolling Update
strategy documentation and fix the link to the `nomad plan` command
documentation.

Wrong shell variable used when changing directory

This PR fixes an issue in which the reference count on a Docker image
would become inflated through task restarts.

The correct list is like 5 lines up

Fix panic when restarting non-running task

This PR fixes an issue that is hit when running templates with restart
mode in which the client could panic when the handle is not running.

Fixes https://github.com/hashicorp/nomad/issues/2479