[PATCH] setup: Handle the package validation exception

[Brian Dessent]

Igor Peshansky wrote:

> And here's the patch (attached).  The ChangeLog is below.

The reason that I haven't fixed this earlier is that I wanted to somehow
handle this a little more gracefully than just pretending that the
package doesn't exist.  That could cause a lot of user confusion.  I
think at the least it should give a dialog that it found a corrupt
package and that it's going to ignore it, and possibly suggest or offer
to delete it.

Brian