glDoom v0.97 alpha - SDL2 supported!

After I long time I decided to make the first release of glDoom porting it to SDL2 (making it run also on Linux)!
I want to thank Wolf3s for the help cleaning up the code and helping me with the project.
gldoom_release_0.97.zip

Please let me know for any issues with the release as soon as possible and I'll try to fix it.

Enjoy!