Bug 9912: DateUtils.t must not access database

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
Merge branch 'bug_9912' into 3.12-master
Update release notes for 3.12.00-beta1
Correct 3.11 updates to use CheckVersion rather than TransformToNum
Bump version for Koha 3.12.00-beta1 release