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

templates/locale.h

@@ -150,10 +150,6 @@ public:
 													 bool try_default_too = true) const;
 
 
-	// it sets whether we should parse locale files as utf-8 files
-	// default: false
-	void UTF8(bool utf);
-
 	// url substitution characters
 	wchar_t UrlSubst(wchar_t c);
 	void    UrlSubst(std::wstring & str);
@@ -230,7 +226,6 @@ private:
 	const std::wstring empty; // used when returning a non existing key from loc_tab (or in LangToFileName)
 	const std::vector<std::wstring> empty_list; // the same as above
 	std::string adir1, adir2;
-	bool input_as_utf8;
 };