gst/: use gst_object_ref when setting the pad template; this will trigger the pad...

gst/: use gst_object_ref when setting the pad template; this will trigger the pad template leaks on GLib 2.6 and the ...

Original commit message from CVS:

* gst/glib-compat.c: (g_value_dup_gst_object):
* gst/glib-compat.h:
* gst/gstpad.c: (gst_pad_set_property):
use gst_object_ref when setting the pad template; this will
trigger the pad template leaks on GLib 2.6 and the slaves