Release v0.9: download page

Issue Background

Since Vagrant now will allow you to download the 0.9 release and the VM will be final version for the release, there is no point on keeping the current beta version in the download page. In the future, Vagrant will allow you to build the VM with the latests patches and we will provide VMs only for the stable versions.

Issue description

• Substitute the current entry for the new ones. There will be two rows:
  • One row for the VM, targeting those with less skills
  • One row with the Vagrant, targeting those with more skills that want the latest changes.
• Include in the download page the links to the technical documentation based on the critical path designed for users to walk through.
• Include the links of the downloadable archives.
• Based on #37 (closed) change the link to the bug tracker to the new location.

Acceptance criteria

• Review by @toscalix of the entries
• Review by @toscalix of all the links in the download page.

This ticket blocks #41 (closed)