Better statistics on personal branch listing

[Jonathan Lange]

I like the project branch listing a lot. At the moment (see https://code.launchpad.net/testresources for an example) it shows me:
    * The number of branches
    * The number of people who own those branches
    * The number of commits in the last month
    * The number of people who made those commits.

These are all very interesting.

The personal page has a bunch of stats that I don't care about: the number of branches I've registered etc. I guess this might be useful for some people, but I'd rather see:
    * The number of branches owned, split by directly owned and indirectly owned.
    * The number of projects on which those branches occur
    * The number of commits in the last month
    * The number of projects where those commits took place.

This would bring the page in parallel with the project listing and actually be kind of cool.