Zircon Beta Release #19 (Win64 binary, source code) file

The Road To Proper Zero Ping Multiplayer: Server browser (Phase 4) implementation -- the server browser is sortable by clicking the column header including ascending/descending. The server browser shows players on a server sorted by score, their score and their colors. Windows key re-enabled, it had been disabled since early Zircon Beta due to a stuck keys issue inherited from DarkPlaces Beta, but that was resolved long ago. Menu navigation consistency everywhere: the up and down arrow wrap around on every menu that isn't maps list or server list. Hardened against "unusual" .mdl alias models, if Zircon encounters a .mdl with negative framegroups, will refuse to load that model and will get the missing model treatment. Fixed DarkPlaces Beta bug parsing master server data for the maps field that could result in a map name like "dm4 0 33 -2". Refinements to issues in lesser used menus like LAN config.