Merge branch 'master' into public_flatsprite

.circleci/config.yml

CMakeLists.txt

README.md

SRB2.cbp

appveyor.yml

bin/Mingw/Debug/.gitignore

bin/Mingw/Release/.gitignore

debian/docs

objs/.gitignore

objs/DC/SDL/Debug/.gitignore

objs/DC/SDL/Release/.gitignore

objs/Linux/SDL/Debug/.gitignore

objs/Linux/SDL/Release/.gitignore

objs/Linux64/SDL/Debug/.gitignore

objs/Linux64/SDL/Release/.gitignore

objs/Mingw/Debug/.gitignore

objs/Mingw/Release/.gitignore

objs/Mingw/SDL/Debug/.gitignore

objs/Mingw/SDL/Release/.gitignore

objs/Mingw64/Debug/.gitignore