Dialog refactoring

Extended the settings dialog
Reorganized the workspace management code
Fixed issue where the previous current directory was in effect even in new workspaces
Improved the log responsiveness on long fossil operations


FossilOrigin-Name: 945c841fba73be1355611554499e68a878b95359

SettingsDialog.h

@@ -10,7 +10,8 @@ namespace Ui {
 struct Settings
 {
 	QString				fossilPath;
-
+	QString				gDiffCommand;
+	QString				gMergeCommand;
 };
 
 
@@ -27,8 +28,9 @@ public:
 
 private slots:
 	void on_btnSelectFossil_clicked();
-
 	void on_buttonBox_accepted();
+	void on_btnSelectFossilGDiff_clicked();
+	void on_btnSelectGMerge_clicked();
 
 private:
     Ui::SettingsDialog *ui;