[KARAF-2511] Update the provisioning page

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1548506 13f79535-47bb-0310-9956-ffa450edef68
[KARAF-2609] Provide etc/org.apache.karaf.kar.cfg file in the distribution

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1548507 13f79535-47bb-0310-9956-ffa450edef68
[KARAF-2511] Review and update the kar page of the user guide

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1548508 13f79535-47bb-0310-9956-ffa450edef68