QmlDesigner.PropertyEditor: using onEditingFinished

Change-Id: I2e6097ebb1e6265eeef7ee6b65e34945fdc83213
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

share/qtcreator/qmldesigner/propertyEditorQmlSources/HelperWidgets/LineEdit.qml

@@ -28,7 +28,7 @@
 ****************************************************************************/
 
 
-import QtQuick 2.1
+import QtQuick 2.2
 import QtQuick.Controls 1.1 as Controls
 import QtQuick.Controls.Styles 1.0
 
@@ -57,7 +57,7 @@ Controls.TextField {
         }
     }
 
-    onAccepted: {
+     onEditingFinished: {
         if (backendValue.value !== text)
             backendValue.value = text;
     }