added undo feature
changed pie data label to percentaje
fixed excel and years distance
added undo icon, fixed sortable and order in bars
set display table row to pie data rows
finished sort action in pies
fixed drag groups when non sortable
last fix of all sortables
fixed orden bug in bars
fixed random things
checked label fonts
added move icon, and pie remove item
centered data in bars
fixed duplicated years
fixed and improved undo action
fixed another bar drawing bug
removed labels from column bars
added undo and delete item to historic