Update the Settings screen - reload theme, restore defaults (#463)

* Add a Reload Theme button to the settings screen (works with both lobby and courtroom)

* Move all value updates on elements to "update_values" func in the settings screen
Add a "restore to defaults" option that allows you to restore all the configuration to its default values.
Set up a .temp settings file that allows you to undo the effects of restoring default options.

* wtf why didn't this error

include/aooptionsdialog.h

@@ -8,6 +8,7 @@
 #include <QtWidgets/QApplication>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QComboBox>
+#include <QtWidgets/QPushButton>
 #include <QtWidgets/QDialog>
 #include <QtWidgets/QDialogButtonBox>
 #include <QtWidgets/QFormLayout>
@@ -24,6 +25,9 @@
 #include <QDirIterator>
 #include <QTextStream>
 
+class Lobby;
+class Courtroom;
+
 class AOOptionsDialog : public QDialog {
   Q_OBJECT
 public:
@@ -41,6 +45,7 @@ class AOOptionsDialog : public QDialog {
   QFormLayout *ui_gameplay_form;
   QLabel *ui_theme_label;
   QComboBox *ui_theme_combobox;
+  QPushButton *ui_theme_reload_button;
   QFrame *ui_theme_log_divider;
   QLabel *ui_downwards_lbl;
   QCheckBox *ui_downwards_cb;
@@ -159,12 +164,15 @@ class AOOptionsDialog : public QDialog {
   QCheckBox *ui_log_cb;
 
   bool needs_default_audiodev();
+  void update_values();
 
 signals:
 
 public slots:
   void save_pressed();
   void discard_pressed();
+  void button_clicked(QAbstractButton *button);
+  void on_reload_theme_clicked();
 };
 
 #endif // AOOPTIONSDIALOG_H

include/courtroom.h

@@ -801,6 +801,7 @@ public slots:
 
   void case_called(QString msg, bool def, bool pro, bool jud, bool jur,
                    bool steno);
+  void on_reload_theme_clicked();
 
 private slots:
   void start_chat_ticking();
@@ -911,7 +912,6 @@ private slots:
   void on_guilty_clicked();
 
   void on_change_character_clicked();
-  void on_reload_theme_clicked();
   void on_call_mod_clicked();
   void on_settings_clicked();
   void on_announce_casing_clicked();