gst/common.h: cleanup

gst/common.h: cleanup

Original commit message from CVS:
* gst/common.h:
cleanup
* gst/gst-types.defs:
* gst/gst.defs:
Updated defs file to current gstreamer core
* gst/gst.override:
Added useless function (at least from python bindings) and little correction
on _wrap_gst_xml_get_topelements()
* gst/gstbin.override:
* gst/gstbuffer.override:
Fix memleak in gst.Buffer.set_caps()
* gst/gstevent.override:
Added wrapper for remaining gst_event_parse_*()
* gst/gstlibs.override:
Wrapped more gst.Controller methods
* gst/gstmodule.c: (init_gst):
new gst_init()
Added atexit(gst_deinit)
* gst/gstpad.override:
Fix memleak in gst.Pad.set_caps()
* gst/gstquery.override:
add gst.Query.parse_segment()
* gst/libs.defs:
Updated to current gst-libs
* gst/pygstminiobject.c: (pygstminiobject_register_wrapper),
(pygstminiobject_new), (pygstminiobject_dealloc):
Added debug
* testsuite/Makefile.am:
* testsuite/common.py:
* testsuite/gstpython.supp:
* testsuite/python.supp:
* testsuite/test_bin.py:
* testsuite/test_buffer.py:
* testsuite/test_element.py:
* testsuite/test_event.py:
* testsuite/test_ghostpad.py:
* testsuite/test_iterator.py:
* testsuite/test_message.py:
* testsuite/test_pipeline.py:
Proper valgrind testing,
Updated tests to new API