* Save a comment to the server
*/
public void saveComment() {
final String commentText = view.getCommentField().getText();
if (commentText.length() > 0) {
final RequestObserver requestObserver = new SaveCommentObserver(this);
final Request request = Network.getInstance().makeRequest(
"defecttracker/comment", HttpMethod.PUT);
final Comment comment = new Comment(model.getId(), model.getCreator(), view.getCommentField().getText());
view.getCommentField().setText("");
request.setBody(comment.toJSON());