Tidy up warnings and deprecated usage:

fix #1290

* BOOST_ASIO_NO_DEPRECATED=1 is now set
* Fix various warnings from the Boost regression test matrix
* Fix a bug in advanced servers when checking for a timeout

test/beast/websocket/accept.cpp

@@ -12,7 +12,7 @@
 
 #include "test.hpp"
 
-#include <boost/asio/io_service.hpp>
+#include <boost/asio/io_context.hpp>
 #include <boost/asio/strand.hpp>
 
 namespace boost {
@@ -637,9 +637,12 @@ public:
         // breakpoint in asio_handler_invoke to make sure
         // it is instantiated.
         boost::asio::io_context ioc;
-        boost::asio::io_service::strand s{ioc};
+        boost::asio::strand<
+            boost::asio::io_context::executor_type> s(
+                ioc.get_executor());
         stream<test::stream> ws{ioc};
-        ws.async_accept(s.wrap(copyable_handler{}));
+        ws.async_accept(boost::asio::bind_executor(
+            s, copyable_handler{}));
     }
 
     void