gst/gstxml.c: Improve and detypofy docs.

Original commit message from CVS:
* gst/gstxml.c:
Improve and detypofy docs.
* tests/check/Makefile.am:
* tests/check/gst/.cvsignore:
* tests/check/gst/gstxml.c: (GST_START_TEST), (gst_xml_suite):
Add a basic test suite for GstXML.
5 files changed