Merge pull request #809 from Arantor/release-2.1

More places where the admin panel should tell the user of saved settings.
Merge pull request #810 from Arantor/release-2.1

More saving goodness, but still some of the more interesting places to be done yet.
Merge pull request #811 from Arantor/release-2.1

! Accept 7 digit user ids in cookies, fixes #807. Also refined the regex...