Add support for scoring and team lists

Using Peter's scoring library, this now calculates game points from
all the yaml files in the ./league/ directory.

It also has a list of teams.

At the moment, this just symlinks to some files within the
scoring-2014.git repository, which isn't particularly fun.  Ideally
there would be a directory with an __init__.py file in there that
would make it more usable.
Rework matches HTTP API

There are now three endpoints:

/matches/<arena>/<match_number>

  Gives you information about the given match number in the specified
  arena.

/matches/<arena>/<match_min>-<match_max>

  Gives you information about the range of match numbers in the
  specified arena.

/matches/<arena>/current

  Gives you information about the current match that is happening in
  the specified arena.
Remove a debug print statement that snuck in

Miscreant.