Add Q_OBJECT macros and fix Cannot invoke tr

src/firsttimewizard.h

@@ -51,6 +51,8 @@ private:
 
 class NewOrRestorePage: public QWizardPage {
 
+	Q_OBJECT
+
 public:
  
     NewOrRestorePage(FirstTimeWizard* parent);
@@ -65,6 +67,9 @@ private:
 
 
 class NewSeedPage: public QWizardPage {
+
+	Q_OBJECT
+
 public:
     NewSeedPage(FirstTimeWizard* parent);
  
@@ -80,6 +85,9 @@ private:
 
 
 class RestoreSeedPage: public QWizardPage {
+
+	Q_OBJECT
+
 public:
     RestoreSeedPage(FirstTimeWizard* parent);