[FEATURE] data as arrays

Most of the libraries I've seen for candlestick uses this format for the dataset (including google charts and highcharts)
```
[
[1272844800000,37.69,38.27,37.55,38.05],
[1272931200000,37.58,37.61,36.68,36.95],
[1273017600000,36.15,36.88,35.53,36.57],
[1273104000000,36.26,36.89,28.46,35.18],
[1273190400000,34.82,35.22,32.17,33.69],
[1273449600000,35.75,36.38,35.50,36.28],
[1273536000000,35.98,37.13,35.79,36.65],
[1273622400000,37.04,37.59,36.96,37.44],
[1273708800000,37.60,37.86,36.63,36.91],
[1273795200000,36.45,36.64,35.64,36.26],
[1274054400000,36.39,36.60,35.39,36.32],
[1274140800000,36.71,36.94,35.75,36.05],
[1274227200000,35.64,36.13,34.98,35.48],
[1274313600000,34.55,34.84,33.74,33.97],
[1274400000000,33.26,34.93,33.05,34.62],
[1274659200000,35.33,35.84,35.18,35.25],
[1274745600000,34.19,35.25,33.88,35.03],
[1274832000000,35.73,36.02,34.82,34.87],
[1274918400000,35.80,36.27,35.59,36.19],
[1275004800000,37.06,37.06,36.19,36.70]
]
```
which is timestamp, o, h, l, c. The way you have all rows as an objects means that most of the time the data coming from the database have to be refromated.