fix windows crash on startup

requires #2101

MiddlePanel.qml

@@ -29,7 +29,7 @@
 
 import QtQml 2.0
 import QtQuick 2.2
-import QtQuick.Controls 2.0
+//import QtQuick.Controls 2.0
 import QtQuick.Controls 1.4
 import QtQuick.Layouts 1.1
 import QtGraphicalEffects 1.0
@@ -187,8 +187,9 @@ Rectangle {
             Layout.fillWidth: true
             Layout.fillHeight: true
             clip: true
-            ScrollIndicator.vertical: ScrollIndicator { }
-            ScrollBar.vertical: ScrollBar { }       // uncomment to test
+            // Disabled scrollbars, gives crash on startup on windows
+//            ScrollIndicator.vertical: ScrollIndicator { }
+//            ScrollBar.vertical: ScrollBar { }       // uncomment to test
 
             // Views container
             StackView {

main.cpp

@@ -76,7 +76,7 @@ int main(int argc, char *argv[])
 
     // Log settings
     Monero::Wallet::init(argv[0], "monero-wallet-gui");
-    qInstallMessageHandler(messageHandler);
+//    qInstallMessageHandler(messageHandler);
 
     MainApp app(argc, argv);