changed: when winix demonizes it creates a three new descriptors (0, 1 and 3)

pointing to /dev/null
added:   DbBase::AssertValueBin(PGresult * r, int row, int col, std::string & result)
         it reads binary (bytea) data
added:   DbTextStream can handle 'bool' types now
         (is puts 'true' of 'false' to the stream)
changed: now passwords can be stored either as plain text, a hash or can be encrypted
         with RSA
         currently we have following hashes:
         md4, md5, sha1, sha224, sha256, sha384, sha512
         we are using openssl to manage them
         (look at config options for more info)
changed: winix version to 0.4.7         
added:   class Run - you can run any program from os and send a buffer to its standard input
         and read what the program put on its standard output
added:   class Crypt (in System) - calculating hashes, and crypting/decrypting




git-svn-id: svn://ttmath.org/publicrep/winix/trunk@734 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/system.h

@@ -16,6 +16,7 @@
 #include "db/db.h"
 #include "request.h"
 #include "config.h"
+#include "crypt.h"
 #include "users.h"
 #include "groups.h"
 #include "rebus.h"
@@ -59,6 +60,8 @@ public:
 	// the time when the winix starts
 	time_t system_start;
 
+	// cryptography and hashes
+	Crypt crypt;
 
 	void SetCur(Cur * pcur);
 	void SetConfig(Config * pconfig);