I have updated all .defs files, removed classes that are no longer used,
and added new classes.  Here is the changelog of what I did:

2004-02-24  Bryan Forbes  <mxpxfifws@yahoo.com>

	* Update to work with gstreamer-0.7.4!!
	* gst/src/bufferpool.[hg|ccg]:
	* gst/src/props.[hg|ccg]:
	* gst/src/propsentry.[hg|ccg]: removed classes that don't exist anymore.
	* gst/src/cpu.[hg|ccg]:
	* gst/src/structure.[hg|ccg]:
	* gst/src/tag.[hg|ccg]: added new classes and functions.
	* gst/src/bin.[hg|ccg]:
	* gst/src/buffer.hg:
	* gst/src/caps.[hg|ccg]:
	* gst/src/clock.hg:
	* gst/src/data.[hg|ccg]:
	* gst/src/elementfactory.[hg|ccg]:
	* gst/src/event.hg:
	* gst/src/object.ccg:
	* gst/src/pad.[hg|ccg]:
	* gst/src/padtemplate.[hg|ccg]:
	* gst/src/pluginfeature.hg: removed deprecated methods; updated methods to
	match current API; added new methods.
	* gst/src/element.[hg|ccg]: same as above; added link_many to handle
	variable argument lists (convenience function).
	* gst/src/Makefile_list_of_hg.am_fragment: added new classes, removed old
	ones.
	* gst/gstmm.h: added new header files, removed old ones.
	* gst/src/gst_enums.defs:
	* gst/src/gst_methods.defs:
	* gst/src/gst_signals.defs: updated from 0.7 header files; hand coded where
	necessary.
	* tools/m4/convert_gstmm.m4: added conversions for new classes, removed old
	conversions.
	* Makefile.am: added examples dir to SUBDIRS.
	* examples/helloworld/helloworld.cc: updated for new API.