This helper returns the token as well as the ACL policy, to be used in a later
commit for logging the token info associated with nomad exec invocation.

Fixed typo

Update CHANGELOG and version.go to reflect 0.9.1/0.9.2 split

Fixed typo: "dots wil be"/"dots will be".

yishan/revised readme

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