Simplify getNewestFile by converting it to an async function, use the
fs-extra promise based fs functions and remove the files argument as
well as the callback.
Refactors the tests as well to use the test/temp folder.
Move the contents of node_modules/_app into lib/ as there shouldn't be
any content in node_modules. This directory is automatically managed
and pruned by npm.
Add lib/ as a local package in package.json, this allows scripts
everywhere to require it's content as "lib/path" instead of relying on
local paths. This shadows the StdLib Node.js Bindings package, but I
could care less.
Change all requires with lib as a local path and _app to use just lib.
Hornwitser