Make bots only use q3tourney6 crusher to kill their enemy

Only use the crusher for killing the bot's enemy. This doesn't
affect 1v1 very much but prevents the whole team of bots in CTF
from suddenly shooting at the crusher button. Entering the crusher
bounds was basically instant death.

code/game/ai_dmq3.c

@@ -3733,7 +3733,7 @@ void BotMapScripts(bot_state_t *bs) {
 							shootbutton = qfalse;
 							break;
 						}
-						else {
+						else if (bs->enemy == i) {
 							shootbutton = qtrue;
 						}
 					}