Added drupalgap.entity and drupalgap.entity_edit which will be replacing all of the drupalgap.[entity_type] and drupalgap.[entity_type]_edit properties. Fixed drupalgap_prepare_argument_entities() to replace the entity id with the loaded entity at the correct index in the page arguments. Adjusted drupalgap_entity_build_from_form_state() to use drupalgap.entity_edit and set up its success call back to use drupalgap_goto and send the user back to the entity's page view. Deprecated drupalgap_entity_get_edit_object() in favor of drupalgap.entity_edit. Added drupalgap_entity_get_core_fields() which will return core fields (e.g. title, nid, created, etc) for entities, that way forms can more easily build these default properties into elements, then added drupalgap_entity_add_core_fields_to_form() to accomplish the latter. Deprecated drupalgap_entity_load_into_form() since drupalgap_field_info_instances_add_to_form has been adjusted to accept the loaded entity as an argument so default values can now be filled in during the form rendering, instead of after the page is loaded. Removed the title and type form elements from the node_edit form since these are now covered by drupalgap_entity_add_core_fields_to_form().