Description of problem:
When you try to set path or relative-to path of access log for virtual host in CLI, you must first add "directory=configuration" node. If you pass attributes values directly in the :add(path="new/relative/path") operation, no reload is required, but new setting is not active until reload.

Version-Release number of selected component (if applicable):
EAP 6.2.0.ER7

How reproducible:
always

Steps to Reproduce:
1. enable access logs and reload
/subsystem=web/virtual-server=default-host/access-log=configuration:add()
2. change relative path from "default-host" to 
/subsystem=web/virtual-server=default-host/configuration=access-log/directory=configuration:add(path="new/relative/path")
3. do few web requests on virtual server url
 check if log is located in new location


Actual results:
no reload required, but access log is still written into default location

Expected results:
reload required flag is set for :add() operation if we call it with attributes values

Additional info:
changing "path" or "relative-to" attribute with operation :write-attribute is behaving correctly - reload required flag is set.