more vfs icon fixing stuff

client should request the vfs status of other clients on join. clients
shouldn't set their own status until they've joined.

if anyone knows of a clientside hook equivalent to PlayerInitialSpawn
(args not needed) so that I don't need to reflect the serverside hook to
the player like this through net it would be much appreciated to know
Merge remote-tracking branch 'origin/master'

Conflicts:
	lua/pac3/core/client/parts/mdl_import.lua