Release script for automating releases

Added a deploy-release.sh script that does almost everything in the release template automatically. Outstanding issues is uploading and modifying files on S3.

All scripts has been moved to tools-dir.

Going forward this should ideally be executed on Jenkins and possible split into smaller scripts for easier management there.
Yeah, that's a tough one. It involves changes to the process. Updating the documentation and writing a blog post is something that will have to stay manual, but performed before the release actually happens, especially the documentation.