QLstats and ctf

CTF caps, assists, and defends are not factored in at all in CTF glicko- its the tdm glicko copy/pasted, joke really

It would be good to get this actually sorted and have a CTF elo rating that is relevant for CTF.

The actual calculation is at https://github.com/PredatH0r/XonStat/blob/master/feeder/modules/gamerating.js#L563

return (p.dt == 0 ? 2 : Math.min(2, Math.max(0.5, p.dg / p.dt))) * (p.score + p.dg / 20) * timeFactor;

dt = damage taken
dg = damage given
score = QL player score
timefactor is the amount of time you've played in the game compared to how quickly the round finished, so if you turn up in the final 30 seconds of a 10 minute game you won't get as many points.

There are two fields p.a (assists) and p.c (captures) that are acvailable but aren't included in the calculation so it'd be quite easy to start using the caps and assists in the number.

I'm not sure if it should be just * (caps * 2) + * (assists / 2) or some variation to show that caps are worth more than assists.

The code doesn't currently retrieve the defends medal but it could and that'd be good to add somewhere.

Thoughts?