Merge remote-tracking branch 'origin/5.4' into 5.5

Change-Id: I0bb8aed8125f001a25cfb6485760f480f5324b7e

src/activeqt/doc/activeqt.qdocconf

@@ -45,3 +45,13 @@ exampledirs += ../../../examples/ \
 imagedirs   += images
 
 navigation.landingpage = "Active Qt"
+
+#add a generic thumbnail image for example docs that does not have an image
+manifestmeta.thumbnail.names    = "ActiveQt/COM App Example*" \
+                                  "ActiveQt/Hierarchy*" \
+                                  "ActiveQt/Menus*" \
+                                  "ActiveQt/Multiple*" \
+                                  "ActiveQt/OpenGL*" \
+                                  "ActiveQt/Qutlook*" \
+                                  "ActiveQt/Simple*" \
+                                  "ActiveQt/Wrapper*"