update to 1.4.0
    
    - Multilingual support, more than one language in an engine
    - Simple option in the setup tool to enable bilingual support
      (i.e. one language + Enlish).
    - The default of the option “Add direct input” in the setup tool
      should be false (bug found by Pravin Satpute).
    - Changing the main input method with the setup tool should not
      remove the direct input (bug found by Pravin Satpute)
    - Add 0 as a digit to commit directly when using digits as select keys
    - Clear dictionaries in Hunspell class before reloading