Merge branch SRB2:next into rendercvars

.gitlab-ci.yml

appveyor.yml

src/d_main.c

src/d_player.h

src/deh_lua.c

src/deh_soc.c

src/g_demo.c

src/g_game.c

src/g_input.c

src/lua_baselib.c

src/lua_consolelib.c

src/lua_hudlib.c

src/lua_infolib.c

src/lua_inputlib.c

src/lua_libs.h

src/lua_maplib.c

src/lua_mathlib.c

src/lua_mobjlib.c

src/lua_playerlib.c

src/lua_polyobjlib.c