SLING-3638 : adding support for 'publish' and 'clean-publish' also on a module (1/multiple) level - plus added 'doNotAskAgain' (without using preferences though atm)

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1600612 13f79535-47bb-0310-9956-ffa450edef68
SLING-3645 - Ignore publish requests if the server is stopped

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1600624 13f79535-47bb-0310-9956-ffa450edef68