roadmap/todo for sdk and tooling

[Matthias Clasen <matthias clasen gmail com>]

Hey Alex,

I think it would be great if we could put together a small
roadmap/todo list for xdg-app and surroundings. If only because I'm
itching to help out, and a roadmap would help a lot with that.

What commands do you envision for the build->bundle part ?
Do we want to have something like 'collect-exports' that looks for
likely candidates in the build tree and copies them ?
Do we need to teach gnome-shell something about exported app bundles,
or do we just set XDG_DATA_DIRS ?
Is the xdg-app commandline stable enough to start writing docs for it ?