Merge branch 'stable-2.14' into stable-2.15

* stable-2.14:
  RestForwarder: Tidy up debug logging
  JGroupsPeerInfoProvider: Adjust javadoc and log output
  JGroupsPeerInfoProvider: Fix broken log formatting
  Improve the debug log when RestForwarder fails

Change-Id: I00d767ae6ef6714ece8f7f91d0a8647d5b6509bf