added: to IsWhite (core/misc)

other unicode white characters
       25 characters -- without a new line character (10)
added: config option: account_need_email_verification
       if true then when creating an account a user has to provide
       his email address and a message with an activation link will be sent 
       back to him
added: 'pw' winix function (not finished yet)
       at the moment only one parameter 'activate'



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@810 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/users.h

@@ -50,7 +50,7 @@ public:
 	SizeType Size();
 	User & operator[](SizeType pos);
 
-	void LoginUser(long user_id, bool remember_me);
+	bool LoginUser(long user_id, bool remember_me, bool use_ses_log = false);
 	void LogoutCurrentUser();
 
 	void IncrementLoggedUsers();