Rework FCPs dashboard view to be more generally relevant

[anp]

@aturon, #61 (comment):

Feature request: global dashboard.

In particular, it'd be great for http://rusty-dash.com/fcp to list each subteam with its open FCP proposals underneath -- ideally, with a "days since proposed" counter which acts as the sort order. That will make it easier for teams to keep on top of stragglers.

Conversely, the list of team members is not so important to have here.

and @nikomatsakis, #61 (comment):

What I would like is a list of the FCPs for each team, along with a matrix showing who has yet to respond, so I can nag them. =)

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Should team members just be expected to create a URL with their GitHub username and bookmark it? I'm fine with that, want to double check everyone else is.

[aturon]

I think that's fine, yes.

It's also fine to keep the current team member link list somewhere -- I think the main point is that we're interested in seeing a more "item-oriented" global dashboard.

[aturon]

Some way to view the outstanding motion-to-FCPs for each team is high priority.

This can be very simple, e.g. on the main /fcp page, have something like:

• Lang team
  • RFC 1234: waiting for foo, bar, and baz
  • PR 567: waiting on bar, quux
• Libs team
  • RFC 555: waiting for quibble, baz

etc.

We're working hard to get everybody checking their dashboards etc, but this kind of overview is essential for team leaders to make sure things are progressing.

[anp]

@aturon I'm deploying this now.

Note: I'm very short on time so I haven't implemented anything for the cases where everyone has marked as reviewed but there are still outstanding concerns. The FCPs page links to the rfcbot comment, so I think it shouldn't be too confusing but I'd like to fix this once I have time to work on the bot again.