haproxy-devel, -made more consistent use of frontend/backend text

-show hints on add/delete/clone buttons
-on frontend page show servers in a backend in a hint on the backend
-fix html character display in interface box.
-small 'config update' to externaladdress field for localhost/any/interfaceaddress to allow for a little easier update to latest version.
-trigger 'apply button' after recalculating certificate chain if a reference was changed.