initial commit
started work on main screen
added example tree view
added sentence viewer and next sentence button
changes to SentenceView control
split into right and left sidebar controls
rename
split out sentence reading tab into separate control
added a contribute sentences tab
added word dictionary interface
added dictionary
added interface for left sidebar
added setter for study focus
added performOnStartup functions
populate initial all vocab list
fixed issue with scrollabars not appearing
sentence fetching now working
make system event-based
list of all words and sentences should depend on language
grey out next sentence button when out of words