add: delete and copy version

versionselectwidget.h

@@ -26,14 +26,12 @@ public:
     void sendCopyEmit(QString newName);
 private slots:
     void on_verListView_itemDoubleClicked(QListWidgetItem *item);
-
     void on_createDuplicateButton_clicked();
-
     void on_DeleteVersionButton_clicked();
-
     void on_switchServerVersionButton_clicked();
 
 signals:
+    void sigSendDeleteVersion(StreamingVersionData *streaming);
     void sigSendSwitchVersion(StreamingVersionData *selectVersion);
     void sigSendCopyVersion(QString versionPair);