updatesite urls is something users know to add to eclipse but most people also opens them up in a browser and then read the instructions and then copy the url.

Currently pages like http://download.jboss.org/jbosstools/updates/development/indigo/ redirects to http://download.jboss.org/jbosstools/updates/JBossTools-3.3.0.M1a/ causing users to add the temporary JBossTools-3.3.0.M1a url to their
eclipse installation instead of http://download.jboss.org/jbosstools/updates/development/indigo/ and as a consequence when there are new updates
on it they will never receive it.

Thus it is important we don't expose whatever internal subdir we are currently fetching from.

Here are the ones I've seen until now and ill add more if I find more:

http://download.jboss.org/jbosstools/updates/development/indigo/
http://download.jboss.org/jbosstools/updates/development/helios/
http://download.jboss.org/jbosstools/updates/stable/galileo/
http://download.jboss.org/jbosstools/updates/stable/ganymede/