Remove requirements from Release Notes

The minimum version of DNN is enforced by the installer, _before_ the release notes are displayed, and all of the other requirements are DNN 7 requirements, so they, too, will need to be satisfied by the time the release notes are displayed.

I'd also suggest removing the link to the checklist, since it's mostly the same basic instructions (but more out of date), but I'll leave that decision to you.
Fixed issue where templates without contenttype did not show up in export dialog
Fixed issue with shared modules (autoconfigure message)
Template chooser state was not persisted (setting was only updated in cache)
Added missing choice in app selector "Get more apps..."
Merge pull request #91 from bdukes/patch-1

Remove requirements from Release Notes
Removed link from release notes which was out of date
Quick fix: Hide import-button while importing an app
Merge branch 'master'