[webgui] use RWebWindow client version in ui5 panel

Most of user-defined ui5 panles will use "currentdir" as location of
XML/JS/JSON files. To effectively control browser cache, 
client version should be used here as well

tutorials/webgui/panel/server.cxx

@@ -74,10 +74,15 @@ void server()
    window = ROOT::Experimental::RWebWindow::Create();
 
    // Important - defines name of openui5 widget
-   // "localapp" prefix indicates that all files located in current directory
+   // "localapp" prefix will be point on current directory, where script executed
    // "localapp.view.TestPanel" means file ./view/TestPanel.view.xml will be loaded
    window->SetPanelName("localapp.view.TestPanel");
 
+   // Provide window client version to control browser cache
+   // When value changed, URL for JSROOT, UI5 and local files will differ
+   // Therefore web browser automatically reload all these files
+   // window->SetClientVersion("1.2");
+
    // these are different callbacks
    window->SetCallBacks(ProcessConnection, ProcessData, ProcessCloseConnection);
 

ui5/panel/panel.html

@@ -7,7 +7,7 @@
       <title>ROOT7 web panel</title>
       <script type="text/javascript" src="jsrootsys/scripts/JSRootCore.js"></script>
    </head>
-   
+
    <style>
       html { height: 100%; }
       body { min-height: 100%; margin: 0; overflow: hidden }
@@ -26,26 +26,30 @@
          loading scripts...
       </div>
    </body>
-   
+
    <script type='text/javascript'>
 
       function ShowOpenui5Panel(panel_handle, arg) {
-         
+
          if (!panel_handle || !arg.first_msg || !sap) return false;
-           
+
          var panelid = "TopPanelId";
-         
+
          var viewName = arg.first_msg;
-         
+
          if ((viewName.indexOf("rootui5.") !== 0) && (viewName.indexOf("jsroot.") !== 0) && (viewName.indexOf("sap.") !== 0)) {
             var p = viewName.indexOf(".");
             if ((p > 1) && (p < viewName.length - 1)) {
-               console.log('Register module path', viewName.substr(0,p));
-               var _paths = {}; _paths[viewName.substr(0,p)] = "/currentdir/"; 
+               var tgtpath = "/currentdir/";
+               var pp = JSROOT.source_dir.indexOf("/jsrootsys/");
+               if (pp>0) tgtpath = JSROOT.source_dir.substr(0,pp) + "currentdir/";
+               var _paths = {};
+               _paths[viewName.substr(0,p)] = tgtpath;
+               console.log('Register module path', viewName.substr(0,p), ' as ', tgtpath);
                sap.ui.loader.config({ paths: _paths });
             }
          }
-         
+
          sap.ui.require(["sap/ui/core/mvc/XMLView"], function(XMLView) {
             XMLView.create({
                id: panelid,
@@ -57,7 +61,7 @@
 
          });
       }
-      
+
       JSROOT.ConnectWebWindow({
          prereq_logdiv: "PanelDiv",
          // openui5src: "jsroot",