Update to 2.0.0
    
    - Update translations because of the merge of the engines (de, pl, uk updated)
    - Update emoji annotations from CLDR
    - Do not hardcode icon names in desktop files
      (Resolves: https://github.com/mike-fabian/ibus-typing-booster/issues/17)
    - Change the default for “Unicode symbols and emoji predictions” to “False”
    - Merge all typing-booster engines into one
    - Change the UI of the setup tool to make it possible to select
      multiple input methods and dictionaries
    - Move the buttons to learn from a file and to delete learned data to the options tab
    - Use the same “About” dialog in the setup tool as in emoji-picker