compile fixes for --disable-gst-debug, G_DISABLE_ASSERT and friends

compile fixes for --disable-gst-debug, G_DISABLE_ASSERT and friends

Original commit message from CVS:
* ext/alsa/gstalsamixer.c: (gst_alsa_mixer_get_volume),
(gst_alsa_mixer_set_volume), (gst_alsa_mixer_set_mute),
(gst_alsa_mixer_set_record), (gst_alsa_mixer_set_option),
(gst_alsa_mixer_get_option):
* ext/dvdnav/dvdnavsrc.c: (dvdnav_get_event_name),
(dvdnavsrc_print_event):
* ext/ogg/gstoggdemux.c: (_find_chain_process), (gst_ogg_print):
* ext/ogg/gstoggmux.c: (gst_ogg_mux_pad_link),
(gst_ogg_mux_pad_unlink):
* gst/multipart/multipartmux.c: (gst_multipart_mux_pad_link),
(gst_multipart_mux_pad_unlink):
* gst/videofilter/gstvideobalance.c:
(gst_videobalance_colorbalance_set_value):
* gst/videomixer/videomixer.c: (gst_videomixer_pad_link),
(gst_videomixer_pad_unlink):
* po/uk.po:
* sys/oss/gstossmixer.c:
* sys/v4l/gstv4lcolorbalance.c:
* sys/v4l/gstv4ltuner.c:
* sys/v4l/v4lsrc_calls.c:
* sys/v4l2/gstv4l2colorbalance.c:
* sys/v4l2/gstv4l2tuner.c:
compile fixes for --disable-gst-debug, G_DISABLE_ASSERT and friends