- not send content is not validated and therefore not passed to server-side callback (currently only implemented for text-, select- and checkbox)
- new method et2_grid.getRow(_widget) to return a fake row container to pass it etemplate2.submit() --> implemented a real row-container for et2_grid
- new output_mode=4 for etemplate_new::exec() to force a json response, like form was submitted from client-side
--> allows to use full server-side validation for ajax like calls submitting only partial content
caused by always breaking reference from attribute values. Now reference is only broken, if attribute value needs expanding (because it contains @ or $)
- Change server-side get_array() to return null if not found, matches client side getEntry() and allows us to tell the difference between false and not found
- Change server-side is_readonly() to properly consider expansion & sub-arrays
- Fix client side et2_readonlysArrayMgr to properly consider expansion & sub-arrays
had to change signature of validate function to get information for autorepeating through
removed entity-encoding of square brackets, as they mess up validiation (havnt found any negative effects so far)
- defines a syntax to describe how the widget is build out of existing widgets
--> reimplemented contact-widget using that aproach on serverside for old etemplate
--> sending the modifications via etemplate_widget::setElementAttribute() to the client fails, because client does not support changing the widget type
--> need to be implemented on the client
- sending evtl. necessary no_lang attribute via modifications to client
- deprecated template->(get|set|disable)_cell(_attribute) in favor of new etemplate_widget::(get|set|disable)Element(Attribute)
--> options via sel_options are currenlty not working on clientside
