Fix update url in TBB-alpha
The update url in TBB-3.0 points to download-easy which does not provide links to 3.0 packages. We should provide a direct link to archive.tp.o for now.
The update url in TBB-3.0 points to download-easy which does not provide links to 3.0 packages. We should provide a direct link to archive.tp.o for now.