3.1.4
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* Fixed loading of HTML and TXT documents
* Updated translations:
  ast   (Xandru Armesto)
  en_GB (Bruce Cowan)
  eo    (Tiffany Antopolski)
  es    (Daniel Mustieles, Jorge González)
  fa    (Arash Mousavi)
  fi    (Timo Jyrinki)
  ja    (Jiro Matsuzawa)
  pa    (A S Alam)
  pt    (Duarte Loreto)
  sk    (Pavol Klačanský)
  ta    (Dr.T.Vasudevan)
  zh_CN (Yinghua Wang)
  zh_HK (Chao-Hsiung Liao)
  zh_TW (Chao-Hsiung Liao)