New changes on LA bots in October

[cen]

1. New lobby command !games <number> for example !games 50
Kicks all players with number of games played less than <number> specified

2. Changed behavior of !games, !min and !max
These commands are no longer one-time commands but they will keep checking the conditions each time a new player joins so you no longer have to type them manually all the time. Basically, each time a player joins, conditions for all these 3 commands will be checked and player kicked if he does not satisfy any one of them.

3. Reworked PSR system
If your PSR gain for victory is less than 5 it will be increased to 5.
If your PSR lose for a loss is less than 5 it will be increased to 5.

Some examples from old PSR gains to new:
+0/-0 becomes +5/-5
+1/-2 becomes +5/-5
+18/-3 becomes +18/-5
+3/-10 becomes +5/-10

This removes the high player PSR problem with 0/0 and brings some more dynamic to the ladder. This system is meant to be experimental and will be tweaked if necessary in the future. We will closely monitor the ladder dynamics to see what happens.