Reorganize examples:

* The examples/ directory is renamed to example/

* Each program is in its own directory with its own build scripts

example/http-client/http_client.cpp

@@ -0,0 +1,45 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+//[example_http_client
+
+#include <beast/core.hpp>
+#include <beast/http.hpp>
+#include <boost/asio.hpp>
+#include <boost/lexical_cast.hpp>
+#include <iostream>
+#include <string>
+
+int main()
+{
+    // Normal boost::asio setup
+    std::string const host = "www.example.com";
+    boost::asio::io_service ios;
+    boost::asio::ip::tcp::resolver r{ios};
+    boost::asio::ip::tcp::socket sock{ios};
+    boost::asio::connect(sock,
+        r.resolve(boost::asio::ip::tcp::resolver::query{host, "http"}));
+
+    // Send HTTP request using beast
+    beast::http::request<beast::http::string_body> req;
+    req.method(beast::http::verb::get);
+    req.target("/");
+    req.version = 11;
+    req.insert(beast::http::field::host, host + ":" +
+        boost::lexical_cast<std::string>(sock.remote_endpoint().port()));
+    req.insert(beast::http::field::user_agent, "Beast");
+    req.prepare();
+    beast::http::write(sock, req);
+
+    // Receive and print HTTP response using beast
+    beast::flat_buffer b;
+    beast::http::response<beast::http::dynamic_body> res;
+    beast::http::read(sock, b, res);
+    std::cout << res << std::endl;
+}
+
+//]