Terraform: enable Consul UI and bind Nomad to all interfaces

Redact Vault.Token from AgentSelf response.

Re-added Allocations documentation 

Code cleanup

Update job.html read most recent deployment sample

The sample request incorrectly used `https://nomad.rocks/v1/job/my-job/deployments` which listed all deployments for the specified job. The sample request has therefore been updated to use the correct endpoint which returns only the jobs most recent deployment.

If Config.Vault.Token is defined, /v1/agent/self will return the string
`<redacted>`. If the token is not set, This endpoint will continue to
return the empty string.

Update raft to fix atomics alingment on 32bit

Allow template to set Vault grace

Related to #2963

Also pulls in some state file syncing improvements

In a content reorganization, the allocations endpoint documentation was removed.  This just brings it back in and updates the output to match v0.6.0 output

autocomplete api

Use int32 for atomic ops to avoid alignment issues

Fix restoration of parameterized, periodic jobs

Add `dev/` for configs for use by Nomad developers

docs: fix tiny errors in monitoring spark app

docs: fix invalid links for hdfs examples

Fixes https://github.com/hashicorp/nomad/issues/2976