v0.0.41

• Add ability to specify grouped columns eg.

[
  {
    header: 'Fruit',
    columns: [
      {header: 'Sour', dataKey: 'fruit.isSour'},
      {header: 'Sweet', dataKey: 'fruit.isSweet'}
    ],
  },
  {
    header: 'Vegetables',
    columns: [
      {header: 'Red', dataKey: 'vegetable.isRed'},
    ]
  }
]

• Add ability to display a summary line at the top and bottom of the table. Summary data passed in as an object and accessors are specified as:

[{
  header: 'Red Fruit',
  summary: 'fruit.red.count'
  dataKey: 'fruit.isRed'
}]