scrub code, remove deprecated code

git-svn-id: https://svn.apache.org/repos/asf/james/hupa/trunk@1522424 13f79535-47bb-0310-9956-ffa450edef68
use different INBOX folder in DEV and PROD mode respectively

git-svn-id: https://svn.apache.org/repos/asf/james/hupa/trunk@1522425 13f79535-47bb-0310-9956-ffa450edef68