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

diff --git a/kteatime/toplevel.cpp b/kteatime/toplevel.cpp
index 468f615..dd944a1 100644
--- a/kteatime/toplevel.cpp
+++ b/kteatime/toplevel.cpp
@@ -713,14 +713,14 @@
 
     btn_up = new TQPushButton(TQString(), listgroup_widget);
     TQToolTip::add(btn_up, i18n("Up"));
-    btn_up->setIconSet(SmallIconSet("up"));
+    btn_up->setIconSet(SmallIconSet("go-up"));
     btn_up->setMinimumSize(btn_up->sizeHint() * 1.2);
     connect(btn_up, TQT_SIGNAL(clicked()), TQT_SLOT(upButtonClicked()));
     hbox->addWidget(btn_up);
 
     btn_down = new TQPushButton(TQString(), listgroup_widget);
     TQToolTip::add(btn_down, i18n("Down"));
-    btn_down->setIconSet(SmallIconSet("down"));
+    btn_down->setIconSet(SmallIconSet("go-down"));
     btn_down->setMinimumSize(btn_down->sizeHint() * 1.2);
     connect(btn_down, TQT_SIGNAL(clicked()), TQT_SLOT(downButtonClicked()));
     hbox->addWidget(btn_down);