Replace Q_SIGNALS and Q_SLOTS

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit f4cb2fd78a)

src/MainWidgetBase.ui

@@ -2809,13 +2809,13 @@ pixels in the input</string>
     <tabstop>preserveCheck</tabstop>
     <tabstop>imagesTabs</tabstop>
 </tabstops>
-<Q_SLOTS>
+<slots>
     <slot access="protected">showOptions( const TQString &amp; )</slot>
     <slot access="protected">backendChoosen( const TQString &amp; )</slot>
     <slot>valueChanged()</slot>
     <slot>marginValueChanged( double )</slot>
     <slot>syncronizeMarginsChanged( bool isChecked )</slot>
-</Q_SLOTS>
+</slots>
 <layoutdefaults spacing="6" margin="11"/>
 <includes>
     <include location="global" impldecl="in implementation">kactivelabel.h</include>