update to 1.5.29
    
    - Update translations from zanata (de, pl updated)
    - Add Recommends: google-noto-emoji-fonts, “Noto Color Emoji”
      looks much better than “Symbola” even in gray scale.
    - Update translations from zanata (de, pl updated)
    - Add a “--version” command line option to emoji-picker
    - itb_emoji.py: Also read emoji-test.txt (from unicode.org)
    - emoji-picker: Set default font to first available in
      ['Noto Color Emoji', 'Emoji One', 'Symbola']
    - Small parsing improvement of emoji-sequences.txt
    - Add support to either use U+FE0F VARIATION SELECTOR-16 in emoji sequences or not
    - emoji-picker: Show “∅ Search produced empty result.” when nothing matches in a search