Fix unitChanged(int) signal in preferences

.. needed to be reconnected across pages to ensure the
   weight/height fields et al changed units when the user
   changed metric/imperial preferences.

src/ConfigDialog.cpp

@@ -131,6 +131,9 @@ ConfigDialog::ConfigDialog(QDir _home, Zones *_zones, Context *context) :
     athlete->setWhatsThis(athleteHelp->getWhatsThisText(HelpWhatsThis::Preferences_Athlete_About));
     pagesWidget->addWidget(athlete);
 
+    // units change on general affects units used on entry in athlete pages
+    connect (general->generalPage->unitCombo, SIGNAL(currentIndexChanged(int)), athlete->athletePage, SLOT(unitChanged(int)));
+
     password = new PasswordConfig(_home, _zones, context);
     HelpWhatsThis *passwordHelp = new HelpWhatsThis(password);
     password->setWhatsThis(passwordHelp->getWhatsThisText(HelpWhatsThis::Preferences_Passwords));

src/ConfigDialog.h

@@ -62,6 +62,7 @@ class AthleteConfig : public QWidget
 
     public:
         AthleteConfig(QDir home, Zones *zones, Context *context);
+        RiderPage *athletePage;
 
     public slots:
         qint32 saveClicked();
@@ -72,7 +73,6 @@ class AthleteConfig : public QWidget
         Context *context;
 
         // about me, power ones and hr zones
-        RiderPage *athletePage;
         ZonePage *zonePage;
         HrZonePage *hrZonePage;
         PaceZonePage *paceZonePage;

src/Pages.cpp

@@ -105,9 +105,6 @@ GeneralPage::GeneralPage(Context *context) : context(context)
     configLayout->addWidget(unitlabel, 1,0, Qt::AlignRight);
     configLayout->addWidget(unitCombo, 1,1, Qt::AlignLeft);
 
-    connect (unitCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(unitChanged(int)));
-
-
     //
     // Garmin crap
     //

src/Pages.h

@@ -77,6 +77,7 @@ class GeneralPage : public QWidget
         qint32 saveClicked();
 
         QString athleteWAS; // remember what we started with !
+        QComboBox *unitCombo;
 
     public slots:
         void browseWorkoutDir();
@@ -98,8 +99,6 @@ class GeneralPage : public QWidget
         QLineEdit *workoutDirectory;
         QPushButton *workoutBrowseButton;
         QPushButton *athleteBrowseButton;
-        QComboBox *unitCombo;
-
 
         QLabel *langLabel;
         QLabel *warningLabel;