* * relativePath(foo) now works
* relativePath(rel, abs) and relativePath(abs, rel) now work (fixes#13222)
* relativePath, absolutePath, getCurrentDir now available in more targets (eg: vm, nodejs etc)
* fix bug: isAbsolutePath now works with -d:js; add tests
* workaround https://github.com/nim-lang/Nim/issues/13469
* remove `relativePath(path)` overload for now
* add back changelog after rebase