Update TBB start script + configs to allow port autoconfig
On Linux (and other platforms too?), the TBB start scripts currently contain checks to prevent launch if another tor+vidalia are running. We need to remove these checks.
We also need to add a "DataDirectory=./Data/Tor" to the vidalia.conf 'Tor' section.
I believe these are the only two changes we need to support multiple concurrent Tors (and even multiple concurrent TBBs).