WFLY-3703

Proxies must be enabled for remote servers
Recursive depth is limited to 3
Use of recursive attributes is consitent for
pre-WFLY-3705 and post-WFLY-3705 behavior
Fix trailing space
Merge pull request #6609 from ServiceMesh/WFLY-3703

WFLY-3703 arq.container.domain.ManagementClient.readRootNode does not see servers on remote hosts