BZFlag version 1.7d-4 is a version of the BZFlag game.
- changed LICENSE to the GNU GPL version 2
- server can now register itself with multiple list servers
- client can now check multiple list servers at once
- bzfls can now dump server list to a file (using USR1)
- bzfls can now bootstrap server list from a file
- now truncates descriptions that are too long; was rejecting server
- fixed ref count bug in bzfls