Somehow this controller code runs sometimes when the existing jobs
are dematerializing. This makes this.get('model') and array of null

Faker hacker nouns can sometimes be two words.

Fixes races accessing node and updating it during fingerprinting

B 2117 windows group process

tf: Update to Nomad 0.8, Consul 1.0.7, and Vault 0.10

Fix consul download url in Vagrant demo

Improve CPU core detection in Vagrantfile

[Docs] Update output message of `nomad node status`

Use single `grep` with `^` condition instead of `grep` + `cat` + `wc`

This issue was introduced in 07cbe23b

```
$ curl -I https://releases.hashicorp.com/consul/1.0.0/consul_1.0.7_linux_amd64.zip
curl: (22) The requested URL returned error: 403 Forbidden

$ curl -I https://releases.hashicorp.com/consul/1.0.7/consul_1.0.7_linux_amd64.zip
HTTP/1.1 200 OK
Cache-Control: max-age=31536000, stale-white-revalidate=86400,
stale-if-error=604800, public
Content-Disposition: attachment
Last-Modified: Fri, 13 Apr 2018 17:21:08 GMT
ETag: "c5ed9baed01b2b3e52a7ecb9850cecc6"
Content-Type: application/zip
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
X-Frame-Options: sameorigin
Content-Length: 12317246
Accept-Ranges: bytes
Date: Mon, 16 Apr 2018 07:04:47 GMT
Connection: keep-alive
```

- Set CREATE_NEW_PROCESS_GROUP for Windows subprocess.
- Ensure we only kill actual process that need to.

Create new process group on process startup.

docs: fix broken links

Docs fixes

Add drain upgrade guide docs