[WIP] port profile page to backbone.js

this will port the javascript on profile pages
`/people/[guid]` and
`/u/[username]`
to use a backbone view.

Not finished, will create a backbone model in order to handle rendering more gracefully,
also, the persons stream doesn't show at this stage.
Sure, not much room for interpretation but it does add another step. When reading the code the brain has to map the abbreviation to the full term in order to understand it.