#1425378 by dagmar: Allow the field handler to override the form-row-id nd form-element-name in the handler, but still be backward compatible

#1367304 by tim.plunkett, dereine: Allow to use arguments with multiple filter groups together. Therefore all filter groups get converted from 0,1 to 1,2 because 0 is made as a special group which has always AND which is then used by the arguments

Revert "#1199328 by casey, bojanz: Add typehintings to every place which doesn't break the api. KUDOS"

This reverts commit 553f0e80.

#1215602 by derhasi: Provide a views_get_views_as_options which allows to list all views availible for form elements

#1225322 by pcambra: Allow to submit/validate form elements placed in area handlers (header, footer, empty)

This reverts commit 2559eea4.

This reverts commit e1adbdc2.