Updated examples to use simpler syntax.

examples/server_http_ex.cpp

@@ -17,7 +17,7 @@
 using namespace dlib;
 using namespace std;
 
-class web_server : public server::http_1a_c
+class web_server : public server_http
 {
     const std::string on_request ( 
         const incoming_things& incoming,

examples/sockets_ex.cpp

@@ -21,9 +21,8 @@ using namespace std;
 
 
 
-class serv : public server::kernel_1a_c
+class serv : public server
 {
-
     void on_connect  (
         connection& con
     )

examples/sockstreambuf_ex.cpp

@@ -32,7 +32,7 @@ using namespace std;
 
 
 
-class serv : public server::kernel_1a_c
+class serv : public server
 {
 
     void on_connect  (