Version level of snippets causes difficulty

[Trevor Daniels]

Neil

I have a problem checking my doc edits, which I like to do before pushing 
them.  I use the latest GUB binary, currently 2.11.56, to compile the docs, 
but it conks on the snippets, which have already been up rated to require 
2.11.57.

Any suggestions?  Could I perhaps change something in Lily to make her think 
she is already at the 2.11.57 level?

Trevor