fix doc page urls

they are versioned nowadays

Change-Id: I67fc2d9c9b9a9096b3351b72ea94e7fc96f98382
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

src/activeqt/doc/activeqt.qdocconf

@@ -2,7 +2,7 @@ include($QT_INSTALL_DOCS/global/qt-module-defaults.qdocconf)
 
 project                 = ActiveQt
 description             = ActiveQt
-url                     = http://qt-project.org/doc/activeqt
+url                     = http://qt-project.org/doc/qt-$QT_VER/activeqt
 version                 = $QT_VERSION
 
 examplesinstallpath     =