Fixed non joinable path component when building destination path.
Fixed bug where check for already existing local file would fail.
Fixed bug in exception handler.
Merge pull request #1 from docmeth02/fixes

Fixes path join issues and checks for existing files.
Fix bug caused by empty path var.
Merge pull request #3 from docmeth02/fixes

Fix bug caused by empty path var.
Better column label
Update README.md
added install guides