Merge pull request #63 from allenxwang/master

Add zone as a deployment context.
Gradle Release Plugin - pre tag commit:  'archaius-0.5.4'.
Gradle Release Plugin - new version commit:  'archaius-0.5.5-SNAPSHOT'.
Merge commit '8b0dddcb9506b3dc5c847ad905408380b0b3bf0e'