Support multi-level subdomains within a hosted zone.
Standardise which environment variables we use

The following tools all use AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY,
so let's use them too:

* aws-cli      : https://github.com/aws/aws-cli#getting-started
* aws-sdk-ruby : http://docs.aws.amazon.com/AWSRubySDK/latest/index.html#Basic_Configuration
* aws-sdk-js   : http://docs.aws.amazon.com/AWSJavaScriptSDK/guide/node-configuring.html#Credentials_from_Environment_Variables
Merge pull request #119 from mozilla/rfk/multi-level-subdomains

Support multi-level subdomains within a hosted zone.
write out ver.txt after everything has completed ok
order child_process.exec callback parameters correctly
Merge pull request #130 from jrgm/issue-126-write-ver-txt-at-end

write out ver.txt after everything has completed ok
set "proxy_buffering off" for GH-131 and GH-122
Merge pull request #135 from jrgm/proxy-buffering-off

set "proxy_buffering off" for GH-131 and GH-122
Fix buffer limits on remote commands
Merge pull request #136 from vladikoff/maxBuffer

Fix buffer limits on remote commands
update to node 0.10.28
Merge pull request #137 from jrgm/use-node-0.10.28

update to node 0.10.28
Merge pull request #129 from chilts/standardise-env-var-names

Standardise which environment variables we use