Where to put shared designs/images

All,

PostgreSQL advocacy needs a place to upload and share images, design
files, flyer designs, etc.  Previously we used pgfoundry for this, but
with pgfoundry broken we don't really have a site.

We need something which allows:
* permissions control on who can upload stuff, including easily adding
new contributors
* some kind of change history (and retrieval of older versions) on files
* permanent image links for a minority of images (e.g. Slonik, etc.)
* easy bulk uploading and downloading of files
* ability to eventually handle ~~ 15GB of image files (1.5GB currently)

The PG infrastructure could probably handle this via a combination of
git.postgresql.org and ftp publishing, but this would be a pain for our
infra team, and would require expansion of storage on several hosts.  Or
we could do github + dropbox.  Nothing's completely satisfactory,
though, so suggestions?

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com