IFF should not be based off "IsKillable" so add new function "IsFriendly" to say who your true friends are.
IFF should not be based off "IsKillable" so add new function "IsFriendly" to say who your true friends are.

git-svn-id: 67bf12f30ddf2081c31403e0b02b2123541f1680@21927 08b3d480-bf2c-0410-a26f-811ee3361c24

kongr45gpen/bzflag,khonkhortisan/bzflag,khonkhortisan/bzflag,adamsdadakaeti/bzflag,khonkhortisan/bzflag,kongr45gpen/bzflag,adamsdadakaeti/bzflag,khonkhortisan/bzflag,khonkhortisan/bzflag,kongr45gpen/bzflag,khonkhortisan/bzflag,adamsdadakaeti/bzflag,kongr45gpen/bzflag,adamsdadakaeti/bzflag,kongr45gpen/bzflag,kongr45gpen/bzflag,khonkhortisan/bzflag,kongr45gpen/bzflag,adamsdadakaeti/bzflag,kongr45gpen/bzflag,adamsdadakaeti/bzflag,adamsdadakaeti/bzflag