Listen on a random port and send a status heading to stderr on launch, also make error message a little clearer on where it is coming from

src/Server.cpp

@@ -11,11 +11,14 @@ Server::Server(QObject *parent) : QObject(parent) {
 
 bool Server::start() {
   connect(m_tcp_server, SIGNAL(newConnection()), this, SLOT(handleConnection()));
-  return m_tcp_server->listen(QHostAddress::Any, 9200);
+  return m_tcp_server->listen(QHostAddress::Any, 0);
+}
+
+quint16 Server::server_port() const {
+  return m_tcp_server->serverPort();
 }
 
 void Server::handleConnection() {
   QTcpSocket *socket = m_tcp_server->nextPendingConnection();
   new Connection(socket, m_page, this);
 }
-

src/Server.h

@@ -9,6 +9,7 @@ class Server : public QObject {
   public:
     Server(QObject *parent = 0);
     bool start();
+    quint16 server_port() const;
 
   public slots:
     void handleConnection();

src/main.cpp

@@ -11,9 +11,10 @@ int main(int argc, char **argv) {
   Server server;
 
   if (server.start()) {
+    std::cerr << "Capybara-webkit server started, listening on port: " << server.server_port() << std::endl;
     return app.exec();
   } else {
-    std::cerr << "Couldn't start server" << std::endl;
+    std::cerr << "Couldn't start capybara-webkit server" << std::endl;
     return 1;
   }
 }