Changed title "Orientation & Zooming" to "Orientation and Zooming". …

Changed title "Orientation & Zooming" to "Orientation and Zooming". …
Added code to show (Empty Notification) on Notification panel when there is no notification.
Added tooltip to save/load button in Configuration window.
Changed to use option button instead of dropdown menu for power rules on Power Manager Panel.
Modified the title of Panel Settings from "Panel Settings" to "Visible Panel"