Update commands to reflect latest changes.
Fixes golint errors in pkg/health
Fixes golint errors in pkg/healthz
Rename a function according to go convention
Correct godoc messages according to review comments
fix typo
Make RESTful operations return 404 Not Found when the target resource
does not exist.

In the original implementation, GET, DELETE and PUT operations on
non-existent resources used to return 500 but not 404.
Merge pull request #287 from rafael/patch-1

Update commands to reflect latest changes.
Merge pull request #487 from yugui/fix/golint

Fixes Go lint errors and a style fix
Remove some verbose logging
Merge pull request #511 from smarterclayton/remove_excess_logging

Remove some verbose logging
Merge pull request #486 from yugui/fix/404-if-notfound

Make RESTful operations return 404 Not Found when the target resource does not exist.
Merge pull request #514 from brendandburns/fix

Insert a couple of sleeps to slow things down.
Add some more logging to service updates.