Make doslinux easier to try by creating a release

[lpsantil]

Create the following downloadable bits

1. doslinux.com + init as a zip
2. doslinux.com + init as ISO
3. doslinux.com + init + bzimage + busybox as zip
4. doslinux.com + init + bzimage + busybox as ISO

[lpsantil]

Fixed the zip part here - lpsantil@d4cf61b