Renamed ProductPackageCurator and added tests
Ignore patch level for curated feed

The RequiredDependencyPackageCurator will now ignore the patch level
when trying to match. So something requiring "ReSharper >= 8.0.1" will
now get into the ReSharper_v8.0 feed
Handle curated feed with no version
Merge pull request #1 from citizenmatt/package-curator

Allow packages requiring ReSharper 8.0.1 into the ReSharper 8.0 feed