Original commit message from CVS:
* check/Makefile.am:
add a .check target for running the check
* check/gst-libs/controller.c: (GST_START_TEST):
cosmetic fixups
* check/gst/gstbuffer.c: (GST_START_TEST), (gst_test_suite):
complete checks for gstbuffer; would be nice if I could get the
gcov stuff to work so I can see if I actually completed gstbuffer.c
* check/gstcheck.h:
add ASSERT_BUFFER_REFCOUNT