QmlProfiler: displaying event durations in milliseconds

Change-Id: Idec442d744891bae8c9986717c32283a9440db9b
Reviewed-on: http://codereview.qt.nokia.com/531

Reviewed-by: Christiaan Janssen <christiaan.janssen@nokia.com>

src/plugins/qmlprofiler/qml/RangeDetails.qml

@@ -71,7 +71,9 @@ BorderImage {
         anchors.top: typeTitle.bottom
         Detail {
             label: "Duration"
-            content: rangeDetails.duration + "μs"
+            content: rangeDetails.duration < 1000 ?
+                        rangeDetails.duration + "μs" :
+                        Math.floor(rangeDetails.duration/1000) + "ms"
         }
         Detail {
             opacity: content.length !== 0 ? 1 : 0