fix for freemarker findByAnd bug

[Adam Heath]

I'd like to install a custom-compiled version of freemarker, with the 
fix I have posted to this list previously.  Upstream seems amicable to 
the change, if it is made so that it doesn't break backwards 
compatibility.  The last patch I sent does so.

I know in the past we have resisted having custom-compiled versions.  In 
this case, I think we need to act a bit more quickly to fix this bug in 
ofbiz, as it's preventing trunk from being used(all the findByAnd calls 
in ftl don't work right now), and freemarker hasn't released a new 
version yet.