completed focus filter and menu helpers

dialogs/debugdialog.cpp

@@ -6,7 +6,7 @@
 
 #include "debug.h"
 
-DebugDialog* debug_dialog = nullptr;
+DebugDialog* Olive::DebugDialog = nullptr;
 
 DebugDialog::DebugDialog(QWidget *parent) : QDialog(parent) {
 	setWindowTitle(tr("Debug Log"));

dialogs/debugdialog.h

@@ -16,6 +16,8 @@ private:
 	QTextEdit* textEdit;
 };
 
-extern DebugDialog* debug_dialog;
+namespace Olive {
+    extern DebugDialog* DebugDialog;
+}
 
 #endif // DEBUGDIALOG_H