[BUGFIX] ISO Date Format Year-M-D with SYS Global Format
TYPO3 configuration knows a global date format configuration
within the installation tool. See TYPO3_CONF_VARS/SYS/ddmmyy
Most countries prefer the Year-Month-Day date format and
not the UK/US style Month-Day->Year.
Change the initialization of the DateTimePicker accordingly.
This issue was automatically created from https://github.com/TYPO3/TYPO3.CMS/pull/263