WEBSITE-80 Add Red Hat middleware tabzilla from jboss.org template on the top right

This patch should fix the problem related to the name of the project being replaced by "Example" in the tabzilla panel.

I've downloaded the latest bootstrap scripts and update the properties to use our scripts instead of the remote ones. This can be reverted once the bootstrap scripts are updated with the changes that we need.

The image that is used to toggle the panel doesn't suit very well our website, I've replaced it with the image that we used at the bottom of the page. If you don't like this solution just remove the commit f98c61c1a7636ed1fba1aa90cbde795827972a61 form the pull request

I also use the site title ("Hibernate") as fallback for project name in case the project name for a section is missing. This way I can update the text in the tabzilla panel to "Hibernate"