- Bot movement is now calculated locally.
- Bots are no longer removed when the net arbitrator disconnects.
- Port an empty version of 'A_FaceConsolePlayer'.

Hissies will be happy now.
- Fixed: The mask didn't incorporate RGF_MISSILES, causing it to fail.
Merge branch 'empty_st_funcs' of https://github.com/edward-san/zdoom
Merge branch 'BotNet' of https://github.com/ChillyDoom/zdoom
Merge branch 'hotfix' of https://github.com/MajorCooke/zdoom