[KARAF-2307] Try to make old commands work with completion

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1550118 13f79535-47bb-0310-9956-ffa450edef68
The -a flag on service:list isn't used anymore

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1550119 13f79535-47bb-0310-9956-ffa450edef68