Fix checking correct component class
REST Model: send full dataset after saving like get does
Bindable: allow saving if nothing is loaded
select first form field on add and do nothing else
add GridBinding bindable

that allows usage of grid with binding as binding
add From controller that implements save button functionality
Fix syntax error
add Countries store which provides data directly in assets
move delete code into own method so it can be overridden

can't use delete as fn name as it's a reserved word
allow filters having initial value