added: a new directory "etc"

there'll be some generic config files for winix
added: a new file in etc directory: time_zones_file
       list of time zones (not finished yet -- daylight saving time is needed)
added: option to config: etc_dir
       a directory in which there are some config files
       used mainly when winix starts
       default: empty (means not for using)
added: option to config: time_zones_file
       a file in etc_dir with time zones info
       default: time_zones.conf
       this is a Space structure with all time zones
added: to system: TimeZones struct
       list of time zones read from etc/time_zones.conf



git-svn-id: svn://ttmath.org/publicrep/winix/trunk@849 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/timezone.h

@@ -32,8 +32,8 @@ public:
 
 
 	/*
-		reading zime zone values from Space struct
-		the struct should have:
+		reading zime zone values from Space struct (tz_id is skipped)
+		the space struct should have:
 		  "tz_offset" (long)
 		  "tz_has_dst" (bool)
 		if tz_has_dst is true then also:
@@ -60,7 +60,8 @@ public:
 	PT::Date ToUTC(const PT::Date & local_date);
 
 
-
+	// each locale has its own identifier
+	int tz_id;
 
 	// time zone offset (in seconds)
 	time_t tz_offset;