[FEATURE] Add privacy policy and add option to disable update check

Relates: #62302
Change-Id: Ife402747d35a90f37fb73ab0da76aeb931c9860e
Reviewed-on: http://review.typo3.org/33354
Reviewed-by: Armin Ruediger Vieweg <armin@v.ieweg.de>
Tested-by: Armin Ruediger Vieweg <armin@v.ieweg.de>