* added missing words to the Bulgarian dictionary
* English dictionary update
* removed repeating words from the Italian and Bulgarian dictionaries
* fixed incorrectly broken words and removed repeating ones from the Ukrainian dictionary
* Russian dictionary update
* documentation update
* made it possible to type words with apostrophes (Dutch, English and Ukrainian)
* Multilingual backend support with initial Russian language support
* Updater service to update the database in the background, and overhauled
backend access
* Fixed long pressing numbers in Lang mode would not input digit
* Fixed Add Word not behaving as you would expect
* Some other minor fixes
