Use sizehint for QML buttons

Change-Id: I12500b87f34081f0e27829a88525c4a8fc52bae9
Reviewed-on: http://codereview.qt.nokia.com/1564


Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Daniel Molkentin <daniel.molkentin@nokia.com>

share/qtcreator/welcomescreen/components/Button.qml

@@ -37,7 +37,7 @@ Components.Button {
     id:button
 
     // dm: this is wrong
-    width: Math.max(100, button.iconSource !== "" ? labelItem.contentsWidth+12 : 0 )
+    width: Math.max(sizehint.width, button.iconSource !== "" ? labelItem.contentsWidth : 0 )
     height: Math.max(22, sizehint.height)
 
     property variant sizehint: backgroundItem.sizeFromContents(80, 6)