changed: now we do not use std::string and char* in the Winix API

everywhere we are using std::wstring and wchar_t*
         (std::string and char* is used only locally in some places
         especially when creating a path to OS file system etc.)
added:   to the special thread when winix closes:
         a write function for curl: FetchPageOnExitCurlCallback()
         without this function the curl library will print
         the page's content to the standart output
changed: TextStream<> class from core can make
         UTF8<->wide strings conversions
removed: from config: utf8 option
         now winix expects UTF8 from the user's input (html forms, url-es)
         and outputs strings in the UTF8 format




git-svn-id: svn://ttmath.org/publicrep/winix/trunk@965 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/slog.cpp

@@ -33,6 +33,7 @@
  */
  
 #include "slog.h"
+#include "utf8/utf8.h"
 
 
 namespace Winix
@@ -188,7 +189,7 @@ return *this;
 
 SLog & SLog::TranslateText(const char * str)
 {
-	AssignString(str, key_temp);
+	PT::UTF8ToWide(str, key_temp);
 	return TranslateText(key_temp.c_str());
 }