Merge branch 'boost-tickrate' into ghost-networking

.travis.yml

CMakeLists.txt

cmake/Modules/FindSDL2.cmake

cmake/Modules/FindSDL2_main.cmake

cmake/Modules/FindSDL2_mixer.cmake

cmake/Modules/LibFindMacros.cmake

src/console.c

src/d_netcmd.c

src/dehacked.c

src/doomdef.h

src/doomstat.h

src/f_finale.c

src/f_finale.h

src/f_wipe.c

src/g_game.c

src/hardware/hw_glob.h

src/hardware/hw_main.c

src/hardware/hw_md2.c

src/info.c

src/info.h