Lobby balance algorithm should now try harder to respect parties

The default balance algorithm will now pick `split_noobs` as the balance algorithm when there is either at least one party, or at least one new player. This will have the effect that parties are now more likely to be respected. `split_noobs` will keep parties together if it can find a combination where team ratings are roughly equal and team standard deviations are roughly equal. The prior algorithm, `loser_picks` , would only keep parties if it could create a counter party of equal size and roughly equal skill and standard deviation. Often it couldn't create a counter party which meant disbanding the original party. If you are still experiencing your party getting disbanded, you can also try the command: `!balancealgorithm respect_avoids` This algorithm keeps parties together if it can find a combination where team ratings are roughly equal. It doesn't check for standard deviation so is even more likely to keep parties than `split_noobs`. It also tries to keep players you are avoiding seperate from you - but avoiding takes lower priority than parties. You can use `$explain` to see what algorithm is being used.