Header in .ui file must be marked as global, otherwise #include "..." is...

Header in .ui file must be marked as global, otherwise #include "..." is generated instead of #include <...>.

source/RobotAPI/gui_plugins/SensorActorWidgetsPlugin/ArmarXPlotter/ArmarXPlotter.ui

@@ -109,7 +109,7 @@
   <customwidget>
    <class>QwtPlot</class>
    <extends>QFrame</extends>
-   <header>qwt_plot.h</header>
+   <header location="global">qwt/qwt_plot.h</header>
    <container>1</container>
   </customwidget>
  </customwidgets>