use more consistent rh ao threshold
remove ANIM_GHOST
use a single udp socket for server traffic instead of one port for gameplay and one port for pings
use saner format for screenshot names by default
remove support for loading older map formats
remove some old ent version handling
fix test map format
remove some more old format cruft
map version check for loadents
clearer unsupported map format error
execute release action for mouse wheel