Do not systematically include released addons into JBoss and use distinct list of addons to release for Nuxeo 5.2 and 5.3

Releasing an addon doesn't mean it must be included in the JBoss package.
Even if it is, this must be done with assembly which manages dependencies and not manually copying artifacts from target/.
Allow use of distinct lists of addons when releasing depending on Nuxeo version (some addons do not exist in all Nuxeo versions)