Revert "Accept version constraints in the GetUpdates method."

This reverts commit fd304b69a9bdaa44b28eba9d0b1febbc8ba98b31.

Conflicts:
	Website/DataServices/V2Feed.svc.cs
Revert "Add unit tests."

This reverts commit 07eb3fc8c1495f0d7641d54e19a874d9694e6a8e.

Conflicts:
	Website/DataServices/V2Feed.svc.cs
Fixed unit test failure
Refactor the CreateCuratedPackageCommand to take CuratedFeed and PackageRegistration objects, as a fix for hitting the database inside of the transaction causing bizarre problems uploading packages.
Fix another known problem that new packages are committed to the database even when blob upload fails!
Small fixup to spacing.
Fix StackOverflow exception in curated feed unit tests.
Fix one more borked test.
This should fix the recurring lucene lock issue which itself seems to be caused by the Lucene Directory not being a proper singleton, which transitively caused the LuceneIndexWriter to not be a singleton (owch).
Simplify quiet exception logging to a single place.
Merge pull request #812 from NuGet/fixlocking

Fix locking issue with LuceneIndexWriter failing to acquire write.lock during package upload.