BIG COMMITT!! SEE COMMENTS

Completed animated navigation over tree; navigation using listbox;
completed search; sorting by name, urgency, importance; reworked view of
canvas with one displayed task; increased steps listbox size; changes in
tree will be saved to DB only after pressing sace button!
Merge branch 'master' of https://github.com/ElGamzoGamingStudio/DB-project

Conflicts:
	PathToSuccess/PathToSuccess/MainWindow.xaml