Common Lisp path manipulation library

Finally finished(to some extent, at least can’t see anything to add right now) my ppath library - the port of Python’s os.path library to Common Lisp.

The idea of the library is to manipulate pure strings and as file paths as well as to wrap some OS-specific system calls for paths manipulation.

I’ve tested it on LispWorks, CCL and SBCL on Windows, Linux and OSX.

This library will be used in my projects Mediaimport and Common Lisp Git API.