* totally refactored the Languages, the Database and the IME module. New and more clear folder/package structure
* CharMap and LangHelper are no more
* removed many unused icons, translations and other resources
* deleted the old keymap samples
* Update user-manual.md
* Preferences are stored in Preferences, not in the database.
* removed some unclear and unused settings from the Preferences screen and the code.
* fixed issues with displaying the UI
* removed all non-English words and words with foreign spelling from the English dictionary
* 0 now works as it should in all modes.
* a more clear newline character in suggestions view
* last used input mode is now preserved and restored the next time
* removed the smiley and symbol dialogs
* capsMode -> textCase
* language names are no longer translated
* updated build instructions
* better use of threads for DB operations
* current text candidate is as long as the sequence, to make it more intuitive
* single characters are added to the end of the suggestion, when there are no more in the database
* Added ѝ to Bulgarian character map
* disabled adding words in a user-friendly manner
* when adding a new word is not possible, a toast message appears, for better user experience
* an error is logged when there are duplicate language IDs
* settings -> settings_legacy
* custom Logger class for easier debugging and no logcat flood in the Release version
* removed unnecessary single letters and invalid words from the dictionaries
* more translations cleanup; also corrected some weird translations
* upgraded gradle
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