add vanilla C.tmLanguage from ST3 (build 3054)
change name and uuid
fix comment highlighting after #endif
(originally made by @facelessuser in Better C++: https://github.com/facelessuser/sublime-languages)
fix #endif handling after opening braces
(originally made by @facelessuser in Better C++: https://github.com/facelessuser/sublime-languages)
fix macro vararg handling (both GNU and C99)