v1.2.0

• Add ability to append or prepend to attributes (e9b71c3)

  hstream({
    '#app': {
      class: { prepend: 'beep ', append: ' boop' }
    }
  })

• Remove attributes by setting attrName: null (32480ba)

• Edit attributes by passing a function (32480ba)

  hstream({
    '#app': {
      title: function (prev) { return prev.toUpperCase() }
    }
  })

• Edit html contents by passing a function (b562c5f)

  hstream({
    'code': {
      _html: function (source) {
        return highlightHTML(source)
      }
    }
  })