use index for faster startup

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1522750 13f79535-47bb-0310-9956-ffa450edef68
use last http library versions

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1522751 13f79535-47bb-0310-9956-ffa450edef68