Replaced 'includehints' with 'includes' in *.ui files. Completed previous commit where one file was missed out.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit c2c01a2ebb)

libktorrent/pluginmanagerwidget.ui

@@ -117,11 +117,8 @@
     </image>
 </images>
 <layoutdefaults spacing="6" margin="11"/>
-<includehints>
+<includes>
-    <includehint>kpushbutton.h</includehint>
+    <include location="global" impldecl="in implementation">kpushbutton.h</include>
-    <includehint>kpushbutton.h</includehint>
+    <include location="global" impldecl="in implementation">labelview.h</include>
-    <includehint>kpushbutton.h</includehint>
+</includes>
-    <includehint>labelview.h</includehint>
-    <includehint>kpushbutton.h</includehint>
-</includehints>
 </UI>