WICKET-5435 Ajaxified version of WebSession#getClientInfo should be added
Add licence
WICKET-5435 Ajaxified version of WebSession#getClientInfo should be added

Since it uses Ajax it should be *Web*ClientInfo
WICKET-5435 Ajaxified version of WebSession#getClientInfo should be added

Introduce AjaxClientInfoBehavior that collects the client info.
Merge branch 'wicket-6.x' into 5435-ajax-browser-info