Fixed compilation issue for CGI and libFCGI connector

due to recent changes in interface  (use READABLE_STRING_8)

library/server/ewsgi/connectors/cgi/src/wgi_cgi_output_stream.e

@@ -10,6 +10,9 @@ class
 
 inherit
 	WGI_OUTPUT_STREAM
+		rename
+			put_string as put_readable_string_8
+		end
 
 	CONSOLE
 		rename
@@ -51,6 +54,17 @@ feature -- Status writing
 			put_header_line (s)
 		end
 
+	put_readable_string_8 (s: READABLE_STRING_8)
+			-- Write `s' at end of default output.
+		local
+			ext: C_STRING
+		do
+			if s.count > 0 then
+				create ext.make (s)
+				console_ps (file_pointer, ext.managed_data.item, s.count)
+			end
+		end
+
 note
 	copyright: "2011-2011, Eiffel Software and others"
 	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"

library/server/ewsgi/connectors/libfcgi/src/wgi_libfcgi_output_stream.e

@@ -58,7 +58,7 @@ feature -- Status writing
 
 feature -- Basic operation
 
-	put_string (s: STRING)
+	put_string (s: READABLE_STRING_8)
 			-- Send `s' to http client
 		do
 			fcgi.put_string (s)

library/server/libfcgi/implementation/fake/fcgi_imp.e

@@ -49,7 +49,7 @@ feature -- FCGI connection
 
 feature -- FCGI output
 
-	put_string (a_str: STRING)
+	put_string (a_str: READABLE_STRING_8)
 			-- Put `a_str' on the FastCGI stdout.
 		do
 			io.put_string (a_str)

library/server/libfcgi/implementation/linux/fcgi_imp.e

@@ -67,7 +67,7 @@ feature -- FCGI Connection
 
 feature -- FCGI output
 
-	put_string (a_str: STRING)
+	put_string (a_str: READABLE_STRING_8)
 			-- Put `a_str' on the FastCGI stdout.
 		local
 			l_c_str: C_STRING

library/server/libfcgi/implementation/windows/fcgi_imp.e

@@ -126,7 +126,7 @@ feature -- FCGI connection
 
 feature -- FCGI output
 
-	put_string (a_str: STRING)
+	put_string (a_str: READABLE_STRING_8)
 			-- Put `a_str' on the FastCGI stdout.
 		local
 			l_c_str: C_STRING