Add etcd to the list of services to validate.
Also add minions.
docs: add aws getting started guide
Introduce application termination message to ContainerStatus
Load etcd tarball from GCS.

Also fix up comment about how to cache docker debs.
Install Salt from debs on GCS.

Also make downloading more reliable and run 'highstate' after install for good measure.  As part of this we no longer use gsutil to download and have to make 'staged' binaries in GCS publicly readable.
Make Docker container dirs writable for pos file
Merge pull request #2249 from satnam6502/salt

Make Docker container dirs writable for pos file
hacking link fix

hacking link outdated due to transfer of development guide to separate CONTRIBUTING.md file
(no other links incorrectly point to README.md#development)
Fix grammar
Fix bad selector file link
Extend timeout for proxy Webscoket calls to one day
Merge pull request #2253 from meirf/minor-grammar-fix

Fix grammar
Merge pull request #2251 from meirf/hacking-link-outdated

hacking link fix
Extract several kubectl helpers from cmd/cmd.go
Merge pull request #2258 from fabianofranz/expose_cobra_helpers

Extract several helpers from pkg/kubectl/cmd/cmd.go
Introduce terminationMessagePath to Container, and update conversion code
to assign the default path.

Move default setting for terminationMessagePath to conversion
from validation. Addressed other comments.
Add support to capture application termination message and propagate
the message to the upper layer through ContainerStatus.
Merge pull request #2256 from satnam6502/kibana-image

Extend timeout for proxy Webscoket calls to one day
Merge pull request #2254 from meirf/fix-bad-link-to-selector.go

Fix bad selector file link
Merge pull request #2245 from jbeda/gcs-deps

Start pulling external dependencies from GCS where possible