gst-libs/gst/colorbalance/colorbalance.c: Adding a default type.

gst-libs/gst/colorbalance/colorbalance.c: Adding a default type.

Original commit message from CVS:
2004-01-14  Julien MOUTTE <julien@moutte.net>

* gst-libs/gst/colorbalance/colorbalance.c:
(gst_color_balance_class_init): Adding a default type.
* gst-libs/gst/colorbalance/colorbalance.h: Adding a macro to access
the type.
* gst/videofilter/gstvideobalance.c: (gst_videobalance_get_type),
(gst_videobalance_dispose), (gst_videobalance_class_init),
(gst_videobalance_init), (gst_videobalance_interface_supported),
(gst_videobalance_interface_init),
(gst_videobalance_colorbalance_list_channels),
(gst_videobalance_colorbalance_set_value),
(gst_videobalance_colorbalance_get_value),
(gst_videobalance_colorbalance_init): Implementing colorbalance
interface.
* gst/videofilter/gstvideobalance.h: Adding colorbalance channels
list.
* sys/ximage/ximagesink.c: (gst_ximagesink_set_xwindow_id): Fixing a
bug which was triggering a BadAccess X error when setting an overlay
before pad was really negotiated.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_colorbalance_init):
Using the colorbalance type macro.