Release 3.17.90
---------------
* Use gspell instead of GtkSpell. WARNING: gspell = 0.1.x is required, the 0.2
  or 1.0 version of gspell will most probably be incompatible with gspell 0.1.
* Add default spell checking settings in the preferences dialog.
* Via the Tools menu, the spell checking settings can be changed and are stored
  on a file-by-file basis.
* There is now a spell checker dialog window, to spell check an entire file
  word-by-word. (the “inline” spell checker is still present, where misspelled
  words are highlighted with a red wavy underline).
* Ensure that the personal build tools and the templates are correctly saved.
* Other various small improvements and bug fixes
* Translation updates