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

functions/upload.cpp

@@ -109,9 +109,7 @@ bool Upload::UploadSaveStaticFile(const Item & item, const std::wstring & tmp_fi
 
 	if( RenameFile(tmp_filename, path) )
 	{	
-		PT::WideToUTF8(path, patha);
-
-		if( !SetPriv(patha, config->upload_files_chmod, config->upload_group_int) )
+		if( !SetPriv(path, config->upload_files_chmod, config->upload_group_int) )
 		{
 			cur->request->status = WINIX_ERR_PERMISSION_DENIED;
 			return false;