Bring undo, redo, find, and revert icons into XDG compliance

diff --git a/kshutdown/actions.cpp b/kshutdown/actions.cpp
index da414de..4b331e0 100644
--- a/kshutdown/actions.cpp
+++ b/kshutdown/actions.cpp
@@ -230,7 +230,7 @@
 		case ShutDown: return "system-log-out";
 		case Reboot: return "reload";
 		case LockScreen: return "system-lock-screen";
-		case Logout: return "undo";
+		case Logout: return "edit-undo";
 		case Extras: return "bookmark";
 		case Nothing:
 		default:
diff --git a/kshutdown/links.cpp b/kshutdown/links.cpp
index b88d0d5..adb61e3 100644
--- a/kshutdown/links.cpp
+++ b/kshutdown/links.cpp
@@ -171,7 +171,7 @@
 		case 2: return "system-log-out";
 		case 3: return "reload";
 		case 4: return "system-lock-screen";
-		case 5: return "undo";
+		case 5: return "edit-undo";
 		default: return TQString::null;
 	}
 }
diff --git a/kshutdownlockout/lockout.cpp b/kshutdownlockout/lockout.cpp
index b4e1e84..d1cd5d2 100644
--- a/kshutdownlockout/lockout.cpp
+++ b/kshutdownlockout/lockout.cpp
@@ -168,7 +168,7 @@
 	);
 
 	_logoutAction = new TDEAction(
-		i18n("End Current Session"), "undo", TDEShortcut(),
+		i18n("End Current Session"), "edit-undo", TDEShortcut(),
 		this, SLOT(slotLogout()),
 		ac_shutDown, "kshutdown_logout"
 	);