Refactor all examples:

fix #575, fix #604, fix #608, fix #634, fix #712

All examples are rewritten:

* Using Best Practices
* Mostly self-contained
* New examples to complete the feature matrix
* The server-framework example is removed

test/example/common/CMakeLists.txt

@@ -17,8 +17,8 @@ add_executable (tests-example-common
     ${COMMON_INCLUDES}
     Jamfile
     detect_ssl.cpp
-    mime_types.cpp
-    rfc7231.cpp
+    root_certificates.cpp
+    server_certificate.cpp
     session_alloc.cpp
     ssl_stream.cpp
     write_msg.cpp

test/example/common/Jamfile

@@ -9,8 +9,8 @@
 
 local SOURCES =
     detect_ssl.cpp
-    mime_types.cpp
-    rfc7231.cpp
+    root_certificates.cpp
+    server_certificate.cpp
     session_alloc.cpp
     ssl_stream.cpp
     write_msg.cpp

test/example/common/root_certificates.cpp

@@ -8,5 +8,5 @@
 //
 
 // Test that header file is self-contained.
-#include "example/common/mime_types.hpp"
+#include "example/common/root_certificates.hpp"
 

test/example/common/server_certificate.cpp

@@ -8,5 +8,5 @@
 //
 
 // Test that header file is self-contained.
-#include "example/common/rfc7231.hpp"
+#include "example/common/server_certificate.hpp"