--- a/blob1.tex	Tue Aug 24 21:18:50 2010 -0700
+++ b/blob1.tex	Wed Aug 25 14:20:31 2010 -0700
@@ -16,7 +16,7 @@
 
 \maketitle
 
-[revision $\ge$ 511;  $\ge$ 3 August 2010]
+[revision $\ge$ 520;  $\ge$ 25 August 2010]
 
 {\color[rgb]{.9,.5,.2} \large \textbf{Draft version, read with caution.}}
 We're in the midst of revising this, and hope to have a version on the arXiv soon.