[sugar] Module proposal: hulahop

[Marco Pesenti Gritti]

Hello,

hulahop is already a dependency of the Browse activity but I think we
should add it to the Glucose module set. The reason I didn't add it
originally is that I wanted to try and keep it a generic component,
which could be useful outside Sugar, to decrease maintenance costs.

Now I think there is consensus that hulahop should make it dead easy
to write web based activities and hence I think it needs to become
Sugar specific. We should try to keep it a tiny layer on the top of
xulrunner/pyxpcom and push generic stuff as much as possible upstream.

I am the maintainer and Simon is a peer.

Marco