Additional check in sort dialog (code review).
Additional check in sort dialog (code review).

* src/hildon2/modest-hildon2-sort-dialog.c
  (modest_hildon2_sort_dialog_get_sort_order): additional check on retrieving
  currently selected sort criteria in selector. If there's no selection
  return criteria of first element (fixes NB#136381).

community-ssu/modest,community-ssu/modest,community-ssu/modest,community-ssu/modest