SDLang-D on Github

[Chris via Digitalmars-d]

@Nick, fyi, when I compile the library with dmd v2.071.0, I get 
the following warning:

sdlang-d 0.9.5: building configuration "library"...
src/sdlang/lexer.d(13,8): Deprecation: module std.stream is 
deprecated - It will be removed from Phobos in October 2016. If 
you still need it, go to https://github.com/DigitalMars/undeaD

Also, maybe you should update the copyright notice in dub.json. 
It still says "2015".