NuGet/NuGetGallery — pull request #1576 by anurse (2013-09-16 18:26:15+00:00)
Title: Fix #1569 by de-duplicating license names before insertion

Fixes #1569.

## Deployment Notes:
- [ ] Deploy the worker, as usual
- [ ] Reset the GallerySettings.NextLicenseReport column to null to refresh all reports.