Original commit message from CVS:
* gst/gstvalue.c: (gst_value_union_int_int_range),
(gst_value_union_int_range_int_range), (gst_value_can_union),
(gst_value_union), (_gst_value_initialize): Add some union
implementations. We didn't have any previously.
* testsuite/caps/Makefile.am:
* testsuite/caps/audioscale.c: (gst_audioscale_expand_value),
(gst_audioscale_getcaps), (test_caps), (main): A little test
that is the same as the caps manipulation in audioscale.
