* Hopefully worked around an issue on 10.5 Leopard which would sometimes cause our normally well-behaved "lsbom" child tasks to turn into zombie processes that would fill up the user's process table, leading to "No more processes" errors in other applications. (We weren't able to reproduce this here, so we can't prove that this fixes the issue. If you were seeing this, please let us know if this fix works!)
* Rewrote the package scanner to find all the system packages on 10.5 Leopard.
* If we can't find the factory-installed font "Helvetica-Oblique" (which we normally use for linked files), we now fall back on using the system font rather than crashing.
* The built-in software update can now automatically download and install its updates.