Added Animation to Bar & Line Chart.

Animation depends on Raphael JS.

For Line chart the the smooth attribute should be true.

e.g: 

Line.prototype.defaults = {
            lineWidth: 3,
            pointSize: 4,
            lineColors: ['#0b62a4', '#7A92A3', '#4da74d', '#afd8f8', '#edc240', '#cb4b4b', '#9440ed'],
            pointWidths: [1],
            pointStrokeColors: ['#ffffff'],
            pointFillColors: [],
            smooth: true,
            xLabels: 'auto',
            xLabelFormat: null,
            xLabelMargin: 24,
            continuousLine: true,
            hideHover: false
        };