Fixed Typo

Fixed typo: scheduilng/scheduling.

divest /api from rest of nomad internal packages

The API package needs to be independent from rest of nomad packages, to
avoid leaking internal packages and dependencies (e.g. raft, ugorji,
etc)

client fingerprinter doesn't overwrite manual configuration

drivers/docker: Support volumes field in Windows

Docs for `nomad alloc signal`

allocs: Add nomad alloc signal command

logmon: recover from shutting down call locally

Retry if we detect shutting down during Start() api call is started,
locally.

Support Docker `volumes` field in Windows.  Previously, volumes parser
assumed some Unix-ism (e.g. didn't expect `:` in mount paths).
Here, we use the Docker parser to identify host and container paths.

Docker parsers use different validation logic from our previous unix
implementation: Docker parser accepts single path as a volume entry
(parsing it as a container path with auto-created volume) and enforces
additional checks (e.g. validity of mode).  Thereforce, I opted to use
Docker parser only for Windows, and keep Nomad's linux parser to
preserve current behavior.

driver/docker: collect tty container logs

This command will be used to send a signal to either a single task within an
allocation, or all of the tasks if <task-name> is omitted. If the sent signal
terminates the allocation, it will be treated as if the allocation has crashed,
rather than as if it was operator-terminated.

Signal validation is currently handled by the driver itself and nomad
does not attempt to restrict or validate them.

Documentation for `nomad alloc stop`

Fixes https://github.com/hashicorp/nomad/issues/5475

When container is a tty container, we need to get raw terminal output
without any additional processing.

Normalize plan to increase the plan apply throughput

singularity_path -> singularity_cache

UI: Preemptions

Signed-off-by: Eduardo Arango <eduardo@sylabs.io>

Docs ea update 0.9