This script allows to ensure that artifacts have been pushed to
a repository after running `mvn deploy`. This will allow us to
check that all of our artifacts have been deployed to sonatype and
the S3 bucket.
Basically it takes the contents of a local mvn repository and
runs HTTP HEAD requests against all artifacts. It also compares if
the length returned by the Content-Length header is the same as the
size of the artifact locally.
Dongjoon Hyun
Alexander Reelsen