Moved httpd library from ewsgi/connectors/standalone/lib/httpd to httpd.

Reused the http_network library as well inside httpd library.

library/server/httpd/concurrency/thread/httpd_request_handler.e

@@ -0,0 +1,56 @@
+note
+	description: "[
+			 Instance of HTTPD_REQUEST_HANDLER will process the incoming connection
+			 and extract information on the request and the server
+		 ]"
+	date: "$Date$"
+	revision: "$Revision$"
+
+deferred class
+	HTTPD_REQUEST_HANDLER
+
+inherit
+	HTTPD_REQUEST_HANDLER_I
+		redefine
+			release
+		end
+
+feature {HTTPD_CONNECTION_HANDLER_I} -- Basic operation		
+
+	release
+			-- <Precursor>
+		local
+			d: detachable STRING
+		do
+			debug ("dbglog")
+				if 
+					attached internal_client_socket as l_socket and then
+					l_socket.descriptor_available
+				then
+					d := l_socket.descriptor.out
+				else
+					d := "N/A"
+				end
+				dbglog (generator + ".release: ENTER {" + d + "}")
+			end
+			Precursor {HTTPD_REQUEST_HANDLER_I}
+			debug ("dbglog")
+				if d /= Void then
+					dbglog (generator + ".release: LEAVE {" + d + "}")
+				else
+					dbglog (generator + ".release: LEAVE {N/A}")
+				end
+			end
+		end
+
+note
+	copyright: "2011-2015, Jocelyn Fiat, Javier Velilla, Eiffel Software and others"
+	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
+	source: "[
+			Eiffel Software
+			5949 Hollister Ave., Goleta, CA 93117 USA
+			Telephone 805-685-1006, Fax 805-685-6869
+			Website http://www.eiffel.com
+			Customer support http://support.eiffel.com
+		]"
+end