MOCCACAL-55: Order parameter and add missing i18n keys for the "moccacalendar" macro

 - scrap default value from macro, as otherwise the value
   provided by the translation does not kick in
MOCCACAL-55: Order parameter and add missing i18n keys for the "moccacalendar" macro

 - add german translations for the marco parameters from l10n
Merge branch 'stable-2.1.x'