Updated charted DEP to 0.4.X

packages/charted/lib/charts/behaviors/hovercard.dart

 //
 // Copyright 2014 Google Inc. All rights reserved.
 //
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file or at
 // https://developers.google.com/open-source/licenses/bsd
 //
 
 part of charted.charts;
 
@@ skipping 60 matching lines @@
   ChartArea _area;
   ChartState _state;
   SubscriptionsDisposer _disposer = new SubscriptionsDisposer();
 
   Element _hovercardRoot;
 
   Hovercard(
       {bool isMouseTracking,
       bool isMultiValue: false,
       bool showDimensionTitle: false,
-      List columnsToShow: const [],
+      List<int> columnsToShow: const <int>[],
       this.builder}) {
     _isMouseTracking = isMouseTracking;
     _isMultiValue = isMultiValue;
     _showDimensionTitle = showDimensionTitle;
     _columnsToShow = columnsToShow;
   }
 
   void init(ChartArea area, Selection _, Selection __) {
     _area = area;
     _state = area.state;
@@ skipping 106 matching lines @@
     var dimensionCol = area.config.dimensions.first,
         dimensionScale = area.dimensionScales.first,
         measureScale = _getScaleForColumn(column),
         dimensionOffset = this.offset,
         dimensionCenterOffset = 0;
 
     // If we are using bands on the one axis that is shown
     // update position and offset accordingly.
     if (area.dimensionsUsingBands.contains(dimensionCol)) {
       assert(dimensionScale is OrdinalScale);
-      dimensionOffset = (dimensionScale as OrdinalScale).rangeBand / 2;
+      dimensionOffset = (dimensionScale as OrdinalScale).rangeBand ~/ 2;
       dimensionCenterOffset = dimensionOffset;
     }
 
     var rowData = area.data.rows.elementAt(row),
         measurePosition = 0,
         isNegative = false,
         dimensionPosition = dimensionScale
                 .scale(rowData.elementAt(dimensionCol)) +
             dimensionCenterOffset;
 
@@ skipping 187 matching lines @@
       }
     }
     if (formatter == null) {
       // Formatter function must return String.  Default to identity function
       // but return the toString() instead.
       formatter = (x) => x.toString();
     }
     return formatter;
   }
 }