This was used to get around direct requests to clients. The UI will
now automatically route through the server.

Refactor to prefer using NewTLSConfiguration constructor

Display bind/advertise addresses on agent startup

Fixed typo in deployment help text

command: add '-monitor' flag to node drain

add missing fields to TLS merge method

Use Tags when CanaryTags isn't specified

fix typo: 'ode' to 'node'.

This PR fixes a bug where we weren't defaulting to `tags` when
`canary_tags` was empty and adds documentation.

Sample outputs from demo/vagrant/(server/client1).hcl and `nomad agent -dev` mode

Server:

```
==> Nomad agent configuration:

       Advertise Addrs: HTTP: 192.168.1.75:4646; RPC: 192.168.1.75:4647; Serf: 192.168.1.75:4648
            Bind Addrs: HTTP: 0.0.0.0:4646; RPC: 0.0.0.0:4647; Serf: 0.0.0.0:4648
                Client: false
             Log Level: DEBUG
                Region: global (DC: dc1)
                Server: true
               Version: 0.8.4-dev
```

Client:

```
==> Nomad agent configuration:

       Advertise Addrs: HTTP: 192.168.1.75:5656
            Bind Addrs: HTTP: 0.0.0.0:5656
                Client: true
             Log Level: DEBUG
                Region: global (DC: dc1)
                Server: false
               Version: 0.8.4-dev
```

Dev:

```
==> Nomad agent configuration:

       Advertise Addrs: HTTP: 127.0.0.1:4646; RPC: 127.0.0.1:4647; Serf: 127.0.0.1:4648
            Bind Addrs: HTTP: 127.0.0.1:4646; RPC: 127.0.0.1:4647; Serf: 127.0.0.1:4648
                Client: true
             Log Level: DEBUG
                Region: global (DC: dc1)
                Server: true
               Version: 0.8.4-dev
```

Fix RPC tunneling when running both client/server

Emit heartbeat and node registration events

Emit events when node eligibility is set

Emit Node Events for draining

change allocation ID used with nomad alloc logs command

Add nil check before setting timeout on docker client

Check allocation's desired state in GC eligibility logic

Add CLI and API support for forcing rescheduling of failed allocs