Update to 2.1.2
    
    - Update translations from zanata (de, pl updated)
    - Add typing-booster.its and typing-booster.loc to avoid making the
      release descriptions and developer name in typing-booster.appdata.xml
      translatable.
    - Remove code to check whether another instance of the setup tool is running.
    - Add new option to avoid adding a space when committing by label or mouse
      (Resolves: https://github.com/mike-fabian/ibus-typing-booster/issues/39)
    - Update emoji annotations from CLDR
    - Do not try to commit if index is >= the current number of candidates
      (Resolves: rhbz#1630349)
    - Add test case for https://bugzilla.redhat.com/show_bug.cgi?id=1630349