#178. Removed code merged in from #160. Changed drupalgap_form_get_element_id() to take in an optional language code and delta as arguments which are appended to the id. Changed drupalgap_form_state_values_assemble() and drupalgap_field_info_instances_add_to_form() to take into consideration language codes and delta values on field elements. Changed drupalgap_form_load() when iterating over elements, to generate the element's id and options attributes id.
#178. One more file, forgot to commit last time.