Update JSON converter, the id is not important, applied the DRY principle.
Update the ORDER_HANDLER to use the meta_string_variable instead of meta_variable from req.
Fix, the key in meta_variable_table, use c.key instead of c.item
Update restbuck_server, remove unused class in inherit.
Update libcurl_http_client_request, to parse context headers before the
execution.
Update wgi_input_stream, commented precondition.
Renamed any *_APPLICATION as *_SERVICE
mainly because those components
such as WSF_APPLICATION, renamed as WSF_SERVICE
are not always the main application entry, and "service" describe them better
Minor implementation change in WSF_REQUEST
Cosmetics
For now the implementation is using Eiffel cURL library.
It requires Eiffel cURL coming with next EiffelStudio 7.0 (or from eiffelstudio's repo from rev#87244 )
