ncp-plus v2.0.4

This is ncp, but with some added cli functionality.

--source and --dest can be used to provide the source and dest files at any position in the arguments. For my purposes, I wanted to put --source as the last thing on the command line, so that I could use NPM's -- feature and pass in an on the fly source file to copy to a static location without having to type out the full copy command each time. $npm_package_config_etc would have worked, except it is platform specific, as windows uses % signs.

Also, I needed the ability to not clobber, and only copy files if they are newer, so I added in the --noclobber and --modified options to the CLI.

TBD

I also updated the CLI arg parser to use nopt, and in the process I dropped support for --limit, --filter, and --stopOnError. This would be easy to add back in but I didn't need them for my case.