use typeahead for users filtering

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1558283 13f79535-47bb-0310-9956-ffa450edef68
cleanup class used

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1558284 13f79535-47bb-0310-9956-ffa450edef68
use typeahead only remove jquery autocomplete

git-svn-id: https://svn.apache.org/repos/asf/archiva/trunk@1558285 13f79535-47bb-0310-9956-ffa450edef68