Double agents can now be picked for late joiners.
This works by keeping a list of players who are applicable for double agents and then after a certain number of them are picked it will tell them all to kill each other.
Increased the amount of double agents that start in the round (x1.5).
Added checking for the other awaiting agents, to make sure they are still alive, human and not disconnected.
Small fix.
 * Small fix to the modifier changer.
 * Eh, found a bug where if you try to setup the round multiple times then it will keep multiplying the config var. Made it calculate it in every instance of it being used.
Merge pull request #1619 from Giacom/latejoin_doubleagent

Latejoin Double Agents [READY]