Add Keyword

URL: /keyword/{personId}
Method: POST
URL Params:
- Requred: personId=[integer]
Data Params:
- Requred: {name: "Путина"}
Success Response:
- Code: 200
- Content: { "id": 2, "name": "Путина", "person": { "id": 3, "name": "Путин" } }
Error Response:
- Code: 400
- Content: {errorMessage: "Bad Request"}
- Code: 404
- Content: {errorMessage: "Person not found"}
Simple Call:

    var newKeyword = {"name": "Путина"};
    $.ajax({
      url: "/keyword/"+personId,
      type: "post",
      dataType: "json",
      data: newPerson,
      contentType: "application/json; charset=utf-8",
      success: function (person) {
        $("#id").html(keyword.id);
        $("#name").html(keyword.name);
      }
    });