Changed line_id instruction to xrow_id, going more general to make sense with both process_cell_click and process_line_click.
Changed line_id instruction to xrow_id, going more general to make sense with both process_cell_click and process_line_click.

cjungmann/schemafw,cjungmann/schemafw,cjungmann/schemafw,cjungmann/schemafw,cjungmann/schemafw