[the bindlestiff]

I completely reworked the pool/tunnel pathing. The surface paths have been removed and I put breathing nodes along the paths to the tunnel entrances. It all seems to work better, except the bots are reluctant to take the paths though the tunnels. I have roam actions in the breathing holes along the way to encourage them to use the tunnels but they don't seem to help much. It'd be nice to be able to use the route system for flags. While play-testing tonight with the f0x, I was able to penetrate the opposing team's base and grab their flags by using the water tunnels.

I followed some of the slow-swimming bots through a tunnel and paid attention to their health. It was at 100% for some time as they slowly swam, then dropped as they ran out of air and died. Other bots made it through OK. The slow swimmers did not appear to be stuck or hitting the walls of the tunnel. Tis a puzzlement. But it leaves a good opportunity for the human player to help the game along!