Original commit message from CVS:
* gst/gstcaps.h:
Added gst_caps_is_simple() macro.
* testsuite/caps/caps.c: (test1):
* testsuite/caps/intersect2.c: (main):
* testsuite/caps/intersection.c: (main):
Fixes to make 'make check' work again after removing
gst_caps_is_chained().