[MERGE] Don't automatically use psyco as a side-effect of importing bzrlib.util.bencode

[John Arbash Meinel]

John Arbash Meinel has voted +1.
Status is now: Approved
Comment:
I've noticed intermittent inability to run pdb, as well. I just chalked 
it up to weirdness, but I'm happy that you found a solution.

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C20070316012216.GA16552%40steerpike.home.puzzling.org%3E