Fixes #1469 - save button doesn't appear to always work. Also fixes some other issues such as flickering visible message about 'you are about to navigate away' and issue where dialog is still visible after being 'dismissed' when you use back button to return to the edit page.
Fixes #1534 by adding LastEdited date to the v2 feed.
Merge pull request #1537 from NuGet/tilovell/1534-LastEditedDateInFeed

(For staging) Fixes #1534 by adding LastEdited date to the v2 feed.
Merge branch 'staging' into qa

Conflicts:
	src/NuGetGallery/PackagesController.generated.cs
Merge remote-tracking branch 'origin/qa' into qa
Fixup changes for merging some changes which were intended to be in QA back into QA.
Merge pull request #1538 from NuGet/tilovell/LostQAChanges

Merge staging fixes back to QA