Profile options

[julienmalard]

This is an experiment in progress with profile options. To consider for merging later...

Todos :

• Profile photo (document store?)
• Profile bio
• Profile contacts? (Limit read access to administrators?)
• Figure out how to incorporate this (which will be unique for each user) with the single Site program. (Unless, of course, we decide to turn the Site program into a swarm with user-level databases as well.) Perhaps incorporate into the general LensService, or else create a separate UserService
• Incorporate userId into the Site program database to track who added which release (perhaps as a separate PR).