Bring up, down, top, and bottom icons into XDG compliance

src/kscopeactions.cpp

@@ -252,7 +252,7 @@ void KScopeActions::init()
 
 	// Go menu
 	addAction(i18n("P&revious Result"),
-		"up",
+		"go-up",
 		"Alt+Up", 
 		m_pWindow->m_pQueryWidget,
 		SLOT(slotPrevResult()),
@@ -260,7 +260,7 @@ void KScopeActions::init()
 		SIGNAL(toggleProject(bool)));
 	
 	addAction(i18n("N&ext Result"),
-		"down",
+		"go-down",
 		"Alt+Down",
 		m_pWindow->m_pQueryWidget,
 		SLOT(slotNextResult()),