This is possible now that we no longer support go1.12 and brings rclone into line with standard practices in the Go world. This also removes errors.New and errors.Errorf from lib/errors and prefers the stdlib errors package over lib/errors.
Co-authored-by: Chris Nelson <stuff@cjnaz.com>
Fixes #118 Co-authored-by: Chris Nelson <stuff@cjnaz.com>