rename to deleteSelected

- destroy was spelled wrong :)
- it doesn't delete the whole grid, only the selected row,
  the new name should make that clear

fixes e9aa355632088da40d57eb64c214fe20783853d7
use StoreSyncQueue when saving to have a savesuccess event when saving finished

as side effect we get a proper order when saving multiple stores
Add language support for Kwf_Date while still having good performance
add config setting that disabled mysql query cache

useful for performance optimizing
add static methods to create a date

this allows usage like Kwf_Date::create('now')->format('Y-m-d').
restructure bindable controllers: now don't access panel directly anymore

instead they need a grid/form controller.
this allows eg. implementing custom save/load logic at a central place
delete old controllers, BindableToGrid should be used instead
use default component set in model to find child component for cards
Call parent setValue to prevent changevalue get fired twice

Problem occured when haven filterfield with two remote stores
ListItem Styling in Columns just on the direct listItem
revert possibility to sync model instances

didn't work correctly and is not needed