Updated to a stable metatype, which required a small code change. Small updates to the import statements, adding an attribute that can be used by a management agent.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1486812 13f79535-47bb-0310-9956-ffa450edef68
Updated DM to latest release.

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1486813 13f79535-47bb-0310-9956-ffa450edef68