The "path" package supports only forward slashes in paths, like those
found in *nix operating systems or URLs.
Meanwhile Windows with its CP/M and QDOS ancestry requires drive letters
and backslashes, and thus the "filepath" package needs to be used.
The end user would be prompted if a file is going to be overwritten,
but homemaker would still attempt to do so no matter the answer.
Move the retry-functionality of cleanPath inside this function so that
the function itself can return a boolean to indicate if the calling task
is free to continue. If the path is not clean then homemaker can just
move on to the next file or next task.
