Added 'hello' example.

example/hello.cc

@@ -0,0 +1,27 @@
+//
+//  hello.cc
+//
+//  Copyright (c) 2012 Yuji Hirose. All rights reserved.
+//  The Boost Software License 1.0
+//
+
+#include <httpsvrkit.h>
+
+int main(void)
+{
+    HTTP_SERVER("localhost", 1234) {
+
+        // const httpsvrkit::Request& req
+        // httpsvrkit::Response& res
+        
+        GET("/hello", {
+            res.set_content("world");
+        });
+
+        GET("/url", {
+            res.set_content(req.url);
+        });
+    }
+}
+
+// vim: et ts=4 sw=4 cin cino={1s ff=unix