Bring previous and next icons into XDG compliance

diff --git a/yakuake/src/main_window.cpp b/yakuake/src/main_window.cpp
index f649c5b..119d9c1 100644
--- a/yakuake/src/main_window.cpp
+++ b/yakuake/src/main_window.cpp
@@ -97,11 +97,11 @@
                               0, TQT_TQOBJECT(this), TQT_SLOT(slotAddSessionQuad()),
                               actionCollection(), "add_tab_quad");
 
-    action = new TDEAction(i18n("Go to Next Terminal"), SmallIcon("next"),
+    action = new TDEAction(i18n("Go to Next Terminal"), SmallIcon("go-next"),
                               "Ctrl+Shift+Up", TQT_TQOBJECT(this), TQT_SLOT(slotFocusNextSplit()),
                               actionCollection(), "focus_next_terminal");
 
-    action = new TDEAction(i18n("Go to Previous Terminal"), SmallIcon("previous"),
+    action = new TDEAction(i18n("Go to Previous Terminal"), SmallIcon("go-previous"),
                               "Ctrl+Shift+Down", TQT_TQOBJECT(this), TQT_SLOT(slotFocusPreviousSplit()),
                               actionCollection(), "focus_previous_terminal");
 
@@ -152,10 +152,10 @@
     createTitleBar();
     createTabsBar();
 
-    action = new TDEAction(i18n("Go to Next Session"), SmallIcon("next"),
+    action = new TDEAction(i18n("Go to Next Session"), SmallIcon("go-next"),
                               "Shift+Right", TQT_TQOBJECT(tab_bar), TQT_SLOT(slotSelectNextItem()),
                               actionCollection(), "next_tab");
-    action = new TDEAction(i18n("Go to Previous Session"), SmallIcon("previous"),
+    action = new TDEAction(i18n("Go to Previous Session"), SmallIcon("go-previous"),
                               "Shift+Left", TQT_TQOBJECT(tab_bar), TQT_SLOT(slotSelectPreviousItem()),
                               actionCollection(), "previous_tab");