removed non void-safe tests.ecf for feeds library

(Especially for the multipart/form-data encoding.)
Factorized code related to smart parameters computing (handling list , table, ...) in WSF_VALUE_UTILITIES.
Fixed an issue with percent_encoded_path_info computation from request_uri.
Fixed issue with cookie addition having same cookie name.
Fixed unicode support for uploaded file.
WSF_STRING is reusing WSF_PERCENT_ENCODER.
Use unicode output for WSF_DEBUG_HANDLER.
Code cleaning

library/server/wsf/extension/wsf_debug_information.e

@@ -410,11 +410,7 @@ feature {NONE} -- Implementation
 		local
 			utf: UTF_CONVERTER
 		do
-			--if s.is_valid_as_string_8 then
+			a_output.append (utf.utf_32_string_to_utf_8_string_8 (s))
-				--a_output.append (s.as_string_8)
-			--else
-				a_output.append (utf.utf_32_string_to_utf_8_string_8 (s))
-			--end
 		end
 
 feature -- Constants

library/server/wsf/src/support/wsf_value_utilities.e

@@ -21,6 +21,7 @@ inherit
 feature -- Smart parameter identification
 
 	add_utf_8_string_value_to_table (a_utf_8_name: READABLE_STRING_8; a_utf_8_value: READABLE_STRING_8; a_table: HASH_TABLE [WSF_VALUE, READABLE_STRING_GENERAL])
+			-- Add a utf-8 string value `a_utf_8_value' associated with name `a_utf_8_name' to `a_table'.
 		local
 			utf: UTF_CONVERTER
 			n,v: READABLE_STRING_32
@@ -31,6 +32,7 @@ feature -- Smart parameter identification
 		end
 
 	add_percent_encoded_string_value_to_table (a_encoded_name: READABLE_STRING_8; a_encoded_value: READABLE_STRING_8; a_table: HASH_TABLE [WSF_VALUE, READABLE_STRING_GENERAL])
+			-- Add a percent-encoded string value `a_encoded_value' associated with name `a_encoded_name' to `a_table'.
 		local
 			v: WSF_STRING
 		do
@@ -39,6 +41,7 @@ feature -- Smart parameter identification
 		end
 
 	add_value_to_table (a_name: READABLE_STRING_GENERAL; a_value: WSF_VALUE; a_table: HASH_TABLE [WSF_VALUE, READABLE_STRING_GENERAL])
+			-- Add value `a_value' associated with unicode name `a_name' to `a_table'.
 		local
 			l_decoded_name: STRING_32
 			l_encoded_name: READABLE_STRING_8

library/text/parser/feed/tests/tests.ecf

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="ISO-8859-1"?>
-<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-14-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-14-0 http://www.eiffel.com/developers/xml/configuration-1-14-0.xsd" name="tests" uuid="C68BD5DC-F756-484E-A9FE-F2D1FD432B2A">
-	<target name="tests">
-		<root class="ANY" feature="default_create"/>
-		<setting name="console_application" value="false"/>
-		<setting name="concurrency" value="none"/>
-		<library name="base" location="$ISE_LIBRARY\library\base\base.ecf"/>
-		<library name="feed" location="..\feed.ecf"/>
-		<library name="testing" location="$ISE_LIBRARY\library\testing\testing.ecf"/>
-		<tests name="src" location=".\" recursive="true"/>
-	</target>
-</system>