Merge branch 'next' into skin-unlocks-sanity

appveyor.yml

src/Makefile

src/command.c

src/config.h.in

src/d_clisrv.c

src/d_main.c

src/d_main.h

src/d_netcmd.c

src/d_netcmd.h

src/d_netfil.c

src/deh_soc.c

src/dehacked.c

src/doomdef.h

src/doomtype.h

src/g_game.c

src/hardware/hw_defs.h

src/hardware/hw_drv.h

src/hardware/hw_main.c

src/hardware/r_opengl/r_opengl.c

src/i_addrinfo.c