engine: Fix for BZ#967890 - enhance logging of JndiAction level in dEBUG mode

Enhanced logging possibility for JndiAction class in debug mode.
This enables user to view more detailed info on what query path, URI and user
was used to perform the authentication and ticket creation.

Change-Id: Ia6c2504ba7d6f77492862e6ccf6c0770fdab0fd7
Bug-Url: https://bugzilla.redhat.com/967890
Signed-off-by: Tomas Dosek <tdosek@redhat.com>