Removed obsolete calls, harmonized predefine response, added non admin user pages.

When access is denied, also provide when possible and wanted, the needed
permissions so that in the future, user will be able to ask for
permission easily.
Renamed previous user handlers as admin user handlers.
Added non admin user handler /user/{uid} .
Add new `send_...` response to `CMS_API.response_api`, and use them
instead of `create {...RESPONSE}.... ; execute`.
Fixed potential issue with storage mailer initialization if folder does
not exist.
Added utf_8_encoded helpers function on CMS_API interface.
Fixed a few unicode potential issues.
Removed a few obsolete calls.

library/recaptcha/src/recaptcha_api.e

@@ -98,26 +98,24 @@ feature {NONE} -- REST API
 
 	get: detachable RESPONSE
 			-- Reading Data
-		local
-			l_request: REQUEST
 		do
-			create l_request.make ("GET", new_uri)
-			Result := l_request.execute
+			Result := (create {REQUEST}.make ("GET", new_uri)).execute
 		end
 
 feature {NONE} -- Implementation
 
 	new_uri: STRING_8
 			-- new uri (BaseUri?secret=secret_value&response=response_value[&remoteip=remoteip_value]
+		local
+			l_uri: URI
 		do
-			create Result.make_from_string (base_uri)
-			Result.append ("?secret=")
-			Result.append (secret)
-			Result.append ("&response=")
-			Result.append (response)
+			create l_uri.make_from_string (base_uri)
+			l_uri.add_query_parameter ("secret", secret)
+			l_uri.add_query_parameter ("response", response)
 			if attached remoteip as l_remoteip then
-				Result.append ("&remoteip=" + l_remoteip)
+				l_uri.add_query_parameter ("remoteip", l_remoteip)
 			end
+			Result := l_uri.string
 		end
 
 	put_error (a_code: READABLE_STRING_GENERAL)
@@ -134,7 +132,7 @@ feature {NONE} -- Implementation
 		end
 
 note
-	copyright: "2011-2015 Javier Velilla, Jocelyn Fiat, Eiffel Software and others"
+	copyright: "2011-2017 Javier Velilla, Jocelyn Fiat, Eiffel Software and others"
 	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
 	source: "[
 			Eiffel Software