Move Palette registration out of FactSystem

Since this is generic Qml support not specific to FactSystem

src/FactSystem/FactSystem.cc

@@ -28,7 +28,6 @@
 #include "UASManager.h"
 #include "QGCApplication.h"
 #include "VehicleComponent.h"
-#include "QGCPalette.h"
 
 #include <QtQml>
 
@@ -44,7 +43,6 @@ FactSystem::FactSystem(QObject* parent) :
     
     // FIXME: Where should these go?
     qmlRegisterUncreatableType<VehicleComponent>(_factSystemQmlUri, 1, 0, "VehicleComponent", "Can only reference VehicleComponent");
-    qmlRegisterType<QGCPalette>(_factSystemQmlUri, 1, 0, "QGCPalette");
 }
 
 FactSystem::~FactSystem()

src/QGCApplication.cc

@@ -247,6 +247,9 @@ void QGCApplication::_initCommon(void)
     // Avoid Using setFont(). In the Qt docu you can read the following:
     //     "Warning: Do not use this function in conjunction with Qt Style Sheets."
     // setFont(fontDatabase.font(fontFamilyName, "Roman", 12));
+    
+    // Register our Qml palette before anyone tries to use it
+    qmlRegisterType<QGCPalette>("QGroundControl.Palette", 1, 0, "QGCPalette");
 }
 
 bool QGCApplication::_initForNormalAppBoot(void)