check/Makefile.am: don't valgrind the controller test - it's leaking - Stefan, HELP

check/Makefile.am: don't valgrind the controller test - it's leaking - Stefan, HELP

Original commit message from CVS:

* check/Makefile.am:
don't valgrind the controller test - it's leaking - Stefan, HELP
* gst/check/gstcheck.c: (gst_check_message_error),
(gst_check_chain_func), (gst_check_setup_element),
(gst_check_teardown_element), (gst_check_setup_src_pad),
(gst_check_teardown_src_pad), (gst_check_setup_sink_pad),
(gst_check_teardown_sink_pad):
* gst/check/gstcheck.h:
add a bunch of methods to set up elements, and src and sink pads
* check/elements/fakesrc.c: (setup_fakesrc), (cleanup_fakesrc):
* check/elements/identity.c: (setup_identity), (cleanup_identity),
(GST_START_TEST):
use them
* gst/gstmessage.c:
* gst/gsttag.h:
whitespace/doc fixes