Gutenprint: 5.2.0-beta2 released (SourceForge)

For reference, the "critical bug fix" in this release is from 5.2.0-beta1.  That release was
only available for about a day before we found the bug and removed the release.  This release
does *not* fix any critical bugs from 5.1.7 or 5.0.2 -- it offers new functionality and some
bug fixes, which we encourage people interested in a 5.2 beta to try out -- but should not be
considered a mandatory upgrade for anyone except the few people who may have downloaded
-beta1.