WelcomeScreen: fix up layout in develop tab

Change-Id: I0e8ac693e9324f680c401254a1a5e55441f672ed
Reviewed-on: http://codereview.qt.nokia.com/998


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

share/qtcreator/welcomescreen/develop.qml

@@ -4,22 +4,21 @@ import components 1.0 as Components
 
 Item {
     id: root
-
     Components.ScrollArea {
         id: scrollArea
         anchors.fill: parent
+        frame: false
         Item {
             height: Math.max(recentSessions.height, recentProjects.height)
-            width: root.width-40
+            width: root.width-20
             Widgets.RecentSessions {
                 id: recentSessions
-                x: 10
-                width: parent.width / 2 - 10
+                width: parent.width / 2
             }
             Widgets.RecentProjects {
                 id: recentProjects
-                x: parent.width / 2 + 10
-                width: parent.width / 2 - 10
+                x: parent.width / 2
+                width: parent.width / 2
             }
         }
     }

share/qtcreator/welcomescreen/widgets/HeaderItemView.qml

@@ -16,7 +16,6 @@ Item {
         anchors.top: parent.top
         anchors.left: parent.left
         anchors.right: parent.right
-        anchors.topMargin: 6
     }
 
     Column {