properties: pass PinosProperties around

Pass PinosProperties around instead of GVariant. This is much easier to
deal with.

src/modules/gst/gst-source.c

@@ -427,10 +427,13 @@ pinos_gst_source_init (PinosGstSource * source)
 PinosSource *
 pinos_gst_source_new (PinosDaemon *daemon,
                       const gchar *name,
+                      PinosProperties *properties,
                       GstElement  *element)
 {
   return g_object_new (PINOS_TYPE_GST_SOURCE,
                        "daemon", daemon,
                        "name", name,
-                       "element", element, NULL);
+                       "properties", properties,
+                       "element", element,
+                       NULL);
 }

src/modules/gst/gst-source.h

@@ -55,6 +55,7 @@ GType           pinos_gst_source_get_type        (void);
 
 PinosSource *   pinos_gst_source_new             (PinosDaemon *daemon,
                                                   const gchar *name,
+                                                  PinosProperties *properties,
                                                   GstElement  *element);
 
 G_END_DECLS