• Reduce the number of characters which cause immediate commits a lot
• Load CLDR data for all languages in the _expand_languages() list
• Currency symbols should neither be stripped from tokens nor
  trigger an immediate commit
• Fix bidi reordering problem in the candidate list for
  right-to-left candidates followed by comments
• Update emoji annotations from CLDR (de_CH and sr_Latn new,
  the others updated)
• Remove category 'Pc' from categories to commit immediately
  (allow _ to be typed into the preëdit always)
• Remove button to install pyhunspell from the setup tool
  (python3-enchant is preferred and even required by the Fedora rpm)
• Include more currency symbols and fullwidth symbols
• Add category from UnicodeData.txt to emoji dictionary
  (For better results when looking up related characters)
• Add 'Sc', # Symbol, Currency to VALID_CATEGORIES
  (to make the currency symbols work)
• Add list of valid characters (to include special characters
  manually)
• Add mouse binding Alt+Mouse3 anywhere in the candidate list
  to start the setup tool