Give the ZODB Programming Guide the same release number as ZODB.

God knows it will get out of synch someday, but continuing to call
it version 0.3a2 is crazy.

doc/guide/zodb.tex

 \documentclass{howto}
 
 \title{ZODB/ZEO Programming Guide}
-\release{0.3a2}
+\release{3.3b1}
 \date{\today}
 
 \author{A.M.\ Kuchling}