A few bugs were reported since the release of version 1.3.1 that we wanted to clean up quickly, hence this very small patch release. Since this is just a patch release, it is a simple matter of uploading a few scripts. But, please read the README.txt and UPGRADES.txt as always and it will guide you through this quick patch fix. In addition, see the CHANGELOG.txt file will list out exactly which files were added/modified/removed.
