Use HTTP_HEADER instead of WSF_HEADER

(WSF_HEADER is kept for convenience and existing code)

examples/hello_routed_world/src/hello_routed_world.e

@@ -84,7 +84,7 @@ feature -- Execution
 
 	execute_default (req: WSF_REQUEST; res: WSF_RESPONSE)
 		local
-			h: WSF_HEADER
+			h: HTTP_HEADER
 			l_url: STRING
 			e: EXECUTION_ENVIRONMENT
 			n: INTEGER
@@ -171,7 +171,7 @@ feature -- Execution
 	execute_hello (req: WSF_REQUEST; res: WSF_RESPONSE; a_name: detachable READABLE_STRING_32; ctx: REQUEST_HANDLER_CONTEXT)
 		local
 			l_response_content_type: detachable STRING
-			h: WSF_HEADER
+			h: HTTP_HEADER
 			content_type_supported: ARRAY [STRING]
 			l_body: STRING_8
 		do

examples/restbucks/src/resource/order_handler.e

@@ -76,7 +76,7 @@ feature -- HTTP Methods
 
 	compute_response_get (ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE; l_order : ORDER)
 		local
-			h: WSF_HEADER
+			h: HTTP_HEADER
 			l_msg : STRING
 			etag_utils : ETAG_UTILS
 		do
@@ -152,7 +152,7 @@ feature -- HTTP Methods
 
 	compute_response_put (ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE; l_order : ORDER)
 		local
-			h: WSF_HEADER
+			h: HTTP_HEADER
 			joc : JSON_ORDER_CONVERTER
 			etag_utils : ETAG_UTILS
 		do
@@ -205,7 +205,7 @@ feature -- HTTP Methods
 
 	compute_response_delete (ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE)
 		local
-			h : WSF_HEADER
+			h : HTTP_HEADER
 		do
 			create h.make
 			h.put_status ({HTTP_STATUS_CODE}.no_content)
@@ -241,7 +241,7 @@ feature -- HTTP Methods
 
 	compute_response_post (ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE; l_order : ORDER)
 		local
-			h: WSF_HEADER
+			h: HTTP_HEADER
 			l_msg : STRING
 			l_location :  STRING
 			joc : JSON_ORDER_CONVERTER

examples/restbucks/src/restbucks_server.e

@@ -48,7 +48,7 @@ feature -- Execution
 			-- in the case that the given uri does not have a corresponding http method
 			-- to handle it.
 		local
-			h : WSF_HEADER
+			h : HTTP_HEADER
 			l_description : STRING
 			l_api_doc : STRING
 		do