disable right panel by default, don't perform Twitter https call if panel is disabled

main.qml

@@ -43,7 +43,7 @@ ApplicationWindow {
     property var currentItem
     property bool whatIsEnable: false
     property bool ctrlPressed: false
-    property bool rightPanelExpanded: true
+    property bool rightPanelExpanded: false
     property bool osx: false
     property alias persistentSettings : persistentSettings
     property var wallet;

tabs/TweetsModel.qml

@@ -60,6 +60,8 @@ Item {
         if (from == "" && phrase == "")
             return;
 
+        if (appWindow.rightPanelExpanded) {
+
 //! [requesting]
             var req = new XMLHttpRequest;
             req.open("GET", "https://api.twitter.com/1.1/search/tweets.json?from=" + from +
@@ -85,6 +87,7 @@ Item {
             req.send();
 //! [requesting]
         }
+    }
 
 
     Component.onCompleted: {