VCS: Notify project wizard about config changes

... and have the project wizard update the available VCS.

Task-number: QTCREATORBUG-4423

src/plugins/cvs/cvscontrol.h

@@ -67,6 +67,7 @@ public:
 
     void emitRepositoryChanged(const QString &s);
     void emitFilesChanged(const QStringList &l);
+    void emitConfigurationChanged();
 
 private:
     CVSPlugin *m_plugin;