DateSearchVariables
* Migrated all fixtures to PHP. * Removed version specific adjustments.
The vendor was renamed from `wrm` to `werkraummedia`. And the namespace vendor was renamed from `Wrm` to `WerkraumMedia`. That way all references to PHP classes as well as the package name itself need to be adjusted.
Add event to alter the View Variables in foreign code. This is used for grouped dates list on weimar.
