hx-inherit attribute

• can enable inheritance by name with multiple attributes9ms ‣

  this.server.respondWith('GET', '/test', 'Test')
  var div = make('<div hx-target="#cta" hx-swap="outerHTML" hx-inherit="hx-target hx-swap">' +
          '<button id="btn1" hx-get="/test"></button>' +
          '<div id="d2"><span id="cta">Click Me!</span></div>' +
          '</div>')
  var btn = byId('btn1')
  var div = byId('d2')
  btn.click()
  this.server.respond()
  div.innerHTML.should.equal('Test')