add release.sh script for doing tarball releases
add release.sh script for doing tarball releases

Be sure to upload the generated tarballs to at least 2 online locations.
Right now this is
 * Github releases
 * GitLab release notes (of a mirror repository over there)

We don't save them as part of this project.

merge/xf86-input-tslib,merge/xf86-input-tslib