The mainline git tree for this code is at
git://anongit.freedesktop.org/git/dbus/dbus-glib.

if you are making major changes which you wish to be incorporated upstream,
please do as small commits to your local git tree, so there is a good
history of your changes.

When you consider changes ready for merging to mainline: host the repo somwhere
accessible with http and sumbit an enchancement bug to the dbus project in
http://bugs.freedesktop.org, notifying the mailing list.