Some minor changes
edit window is now created every time it is needed instead of keeping it
in memory
NoteTreeItem is a separate file now
Now uses NoteTreeItem
NoteTreeItem is a separate file now
Settings window is now created each time it is needed
Now have confirmation dialogue before deleting and warning if nothing is
selected
Removed .cpp file
Minor changes
Removed operator<
Removed sorting, ptrLess struct, fixed findClosest bug
Removed note.cpp