updated Externals (SDL2 to replace SDL)
Merge pull request #118 from learn-more/master

updated Externals (SDL2 to replace SDL)
update desc with building sdl2 (since common sense is not available for everyone apparently)
Merge pull request #120 from learn-more/master

update desc with building sdl2 (since common sense is not available for ...
update readme for people without a functional brain.
spaces..
what the...
....
Update README.md

github markup is quite fucked...
Merge pull request #122 from learn-more/master

some people should not be allowed to use a pc.
Merge remote-tracking branch 'origin/master' into swrenderer