Adding Syntastic
Added Apophenia
Update README.md
Update README.md
Merge pull request #18 from Dleavenworth/master

Added SDL2
Jannson -> Jansson
Merge pull request #20 from akheron/patch-1

Jannson -> Jansson
Adding UDPC.
Adding some more libraries.
Whoops, forgot links
Adding more stuff
Update README.md

Added "C Programming Language Certified Associate preparation course" from C++ Institute.
Merge pull request #21 from remiq/master

Self-study courses - CLA course
Adding online learning resources
Creating String Manipulation section, adding huffandpuff