Fix server's player reject prints
Don't have g_teamForceBalance apply to bots or local players

Fixes starting Team Arena server with "even teams" (g_teamForceBalance) enabled.
Fix willing spectator in non-team gametypes

In Q3 bots have "team" userinfo. In Spearmint humans and bots have "teampref" userinfo.
Add a \n to a bot developer message and shut up another
Don't have bot walk if has flag, skulls, or speed power up
Remove unused function BotFinishTravel_Walk
Stop bots from using splash damage aiming when target in water or for plasma gun

Bots did this with every weapon which is doing splash damage, regardless of the dmg radius, which is ESSENTIAL to give someone the benefits of splash damage (e.g.: Plasmagun dmg_radius 20, is too weak).
Bots did splash aiming always, even if the enemy is in water where splash damage is worthless, because of friction, moreover the enemy can be a few units away from ground, which reduces dmg done by radius.
Merge remote-tracking branch 'spearmint/master'

Conflicts:
	code/game/ai_dmq3.c
	code/game/g_client.c
	code/game/g_session.c