Merge pull request #22 from pmorie/build-deploy

Fix tests and add gear archive_deployment
Merge pull request #23 from pmorie/build-deploy

Cleanup
Store git info with deployment metadata
Use public_hostname instead of ip in gear registry

Use the node's public hostname instead of ip address in
GearRegistry::Entry and web proxy config
Merge pull request #24 from ncdc/git-ref-metadata

Store git info with deployment metadata
Merge pull request #25 from ncdc/public-hostname

Use public_hostname instead of ip in gear registry
Add oo-gear-registry and change haproxy to use platform gear registry