Replace Q_SIGNALS and Q_SLOTS

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit e8ec823504)

client/config/infodialog.ui

@@ -271,9 +271,9 @@ You may look for the most recent version at kde-look.org:</string>
         <slot>close()</slot>
     </connection>
 </connections>
-<Q_SLOTS>
+<slots>
     <slot>kURLLabel1_leftURL()</slot>
-</Q_SLOTS>
+</slots>
 <layoutdefaults spacing="6" margin="11"/>
 <includes>
     <include location="global" impldecl="in implementation">kurllabel.h</include>