Merge branch 'next' of https://git.do.srb2.org/STJr/SRB2 into udmf-multitag

.circleci/config.yml

appveyor.yml

src/CMakeLists.txt

src/Makefile

src/Makefile.cfg

src/android/i_cdmus.c

src/android/i_video.c

src/blua/Makefile.cfg

src/blua/lstrlib.c

src/blua/lvm.c

src/command.c

src/command.h

src/config.h.in

src/console.c

src/d_clisrv.c

src/d_clisrv.h

src/d_main.c

src/d_net.h

src/d_netcmd.c

src/d_netcmd.h