SLING-3944 do not embed/export javax.inject in/from bundle, cleanup pom

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1625513 13f79535-47bb-0310-9956-ffa450edef68
SLING-3027 SLING-3017 add new Sling Scripting Java feature

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1625514 13f79535-47bb-0310-9956-ffa450edef68