Well, license here is pretty "super-open", not even copy-left or
copy-right, basically its close to the WTFPL, just use it as you
want, as it's the most practical to you :

 * If you want to use it as GIT submodule and compile it in your app,
   do it ;
 * If you prefer separate project as a shared library, do it ;
 * If you need to modify the project to be able to integrate in your
   app (opensource or not), do it ;
 * If you want to share you work on the library, thanks a lot, but if
   you don't, no problem ;
 * If you think about some weird case I didn't talk about, well, do
   whatever you want, I don't need to know about it ;
 * If you like it so much you want to spread the word, thank you,
   you're welcome.

Enjoy !