Write the world object out (for save world) if world size or flag height are different from default.
Write the world object out (for save world) if world size or flag height are different from default.

git-svn-id: 67bf12f30ddf2081c31403e0b02b2123541f1680@4971 08b3d480-bf2c-0410-a26f-811ee3361c24

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