Updating stat tracking method to a single DB entry

Controller no longer uses terribly coded functions to produce
statistics.
Added the stat tracking add function after a match is reported.
Makes matches a dependent of arena's. Destroy arena? Matches go too.
Added a TON of new code to track stats in a cleaner way

Stats are now updated in a single object. Controller no longer searches
the entire database for matches and no longer does massive calculations
on the fly.
Changed html to accomidate new Stats tracking model
Updated HTML to accomidate new Stats tracking model
Rails adds
Rails adds