Server selection always in range (#130)

* Server selection stays always in the list's range
* Removed the usage of QZxing module from PageQrDecoder page
* Fixed null spelling on qml instead of nil

client/ui/qml/Pages/PageQrDecoder.qml

@@ -26,7 +26,7 @@ PageBase {
     }
 
     Connections {
-        target: Qt.platform.os != "ios" ? QrDecoderLogic : nil
+        target: Qt.platform.os != "ios" ? QrDecoderLogic : null
         function onStartDecode() {
             console.debug("Starting QR decoder")
             loader.sourceComponent = component
@@ -71,7 +71,7 @@ PageBase {
                 anchors.right: parent.right
                 autoOrientation: true
                 fillMode: VideoOutput.PreserveAspectFit
-                filters: [ zxingFilter ]
+//                filters: [ zxingFilter ]
 
 
                 Rectangle {

client/ui/qml/Pages/PageQrDecoderIos.qml

@@ -25,7 +25,7 @@ PageBase {
     }
 
     Connections {
-        target: Qt.platform.os == "ios" ? QrDecoderLogic : nil
+        target: Qt.platform.os == "ios" ? QrDecoderLogic : null
         function onStartDecode() {
             console.debug("Starting QR decoder")
             loader.sourceComponent = component

client/ui/qml/Pages/PageServerList.qml

@@ -42,6 +42,9 @@ PageBase {
         anchors.bottom: parent.bottom
         anchors.bottomMargin: 20
         model: ServerListLogic.serverListModel
+        highlightRangeMode: ListView.ApplyRange
+        highlightMoveVelocity: -1
+        currentIndex: ServerListLogic.currServerIdx
         spacing: 5
         clip: true
         delegate: Item {
@@ -55,10 +58,6 @@ PageBase {
                     if (GC.isMobile()) {
                         ServerListLogic.onServerListPushbuttonSettingsClicked(index)
                     }
-                    else {
-                        listWidget_servers.currentIndex = index
-                    }
-
                     mouse.accepted = false
                 }
                 onEntered: {

client/ui/qml/Pages/Protocols/PageProtoTorWebSite.qml

@@ -27,7 +27,6 @@ PageProtocolBase {
         anchors.top: caption.bottom
         anchors.left: root.left
         anchors.right: root.right
-        anchors.bottom: pb_save.top
         anchors.margins: 20
         anchors.topMargin: 10