Massive CTF updates

Yo, are you going to add a feature where flag carries can't enter vehicles? I think that would be a good idea.

I actually can't stop players from entering a vehicle-- however, I can force players to drop the flag upon entering a vehicle (so you can't carry and be in a vehicle at the same time)... that cvar already exists.

Personally, I think that's unnecessary, as vehicles don't REALLY have much of a problem with CTF gameplay depending on the map, but it's up to the mapper/server owner.