libdatrie 0.2.11 Released

• Detect iconv() error more correctly in trietool.
  (Thanks @dmacks for the report on Issue #3)
• Clarify package description that search time is O(m), where m is key length, not O(1), while still claiming that it's independent of database size.
  (Thanks @flackbash for the report on Issue #4)
• Fix trie_state_get_data() on a prefix key.
  (Thanks Filip Pytloun from the pytries project for the initial patch)
• Fix reported segfault on full-range alpha map.
  (Thanks @truebit for the report on Issue #6, and @nevermatch for the analysis.)