Doc: Qt version field has been moved to Kits options dialog

You must now select a kit. Also, it sounded like only 4.7.4 was
supported.

Change-Id: Ifadeb980f407cad8dc79d1b7598ff49b294f7b10
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

doc/src/analyze/qtquick-profiler.qdoc

@@ -38,8 +38,8 @@
             for the project. For more information, see
             \l{Setting Up QML Debugging}.
 
-        \li In the \gui Projects mode, select Qt 4.7.4 in the \gui {Qt version}
-            field.
+        \li In the \gui Projects mode, select a \l{glossary-buildandrun-kit}
+            {kit} with Qt version 4.7.4 or later.
 
             \note To profile applications on devices, you must install Qt 4.7.4
             or later libraries on them.