embed metadata in rendering
Submitted by Jeff F.T.
Assigned to Jeff F.T.
Use the project name as a title in the rendered clip, the gnome user's name as the Author, and the current date as the year of production, etc.
Eventually maybe the user would want to customize these fields, but handling them automatically for now would be pretty neat.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=581040